Fortificar Examples, Sentences & Quiz in Spanish

fortificar means "to fortify" in English, and this page shows it in everyday use: real example sentences in several tenses, two short dialogues, the mistakes learners actually make, and a quiz to test yourself. You will see fortificar with the city with walls, the castle on the hill, the border with soldiers and the body with exercise — the situations where Spanish speakers really use it. A good first sentence to learn is: Cada día, yo fortifico la ciudad con murallas. — "Every day, I fortify the city with walls." Read the examples aloud, notice which tense each one uses, and then try the dialogues and the quiz.

fortificar in everyday sentences

Twelve sentences with fortificar, grouped by situation. Each one shows the verb in a different tense or person, with its English translation and a note on when to use that form.

Everyday use

  1. Cada día, yo fortifico la ciudad con murallas. — "Every day, I fortify the city with walls." The present tense fits a habit here.
  2. Ayer, yo fortifiqué el castillo en la colina. — "Yesterday, I fortified the castle on the hill." The preterite fits one finished action.
  3. Antes, yo fortificaba la frontera con soldados. — "In the past, I used to fortify the border with soldiers." The imperfect fits a repeated action in the past.
  4. Mañana, nosotros fortificaremos el cuerpo con ejercicio. — "Tomorrow, we will fortify the body with exercise." The future tense fits a plan for tomorrow.
  5. Si pudieras, tú fortificarías la ciudad con murallas. — "If you could, you would fortify the city with walls." The conditional fits something that would happen.
  6. Yo he fortificado el castillo en la colina. — "I have fortified the castle on the hill." The present perfect fits an action with present relevance.

More situations

  1. Normalmente, él fortifica la frontera con soldados. — "Normally, he/she fortifies the border with soldiers." The present tense fits a general truth here.
  2. Ayer, él fortificó el cuerpo con ejercicio. — "Yesterday, he/she fortified the body with exercise." The preterite fits one finished action.
  3. Antes, nosotros fortificábamos la ciudad con murallas. — "In the past, we used to fortify the city with walls." The imperfect fits a repeated action in the past.
  4. Mañana, yo fortificaré el castillo en la colina. — "Tomorrow, I will fortify the castle on the hill." The future tense fits a plan for tomorrow.
  5. Espero que él fortifique la frontera con soldados. — "I hope that he/she fortifies the border with soldiers." The present subjunctive follows espero que.
  6. ¡Fortifica el cuerpo con ejercicio! — "Fortify the body with exercise!" The imperative fits a direct order or request.

The verb in context

Two short dialogues using fortificar naturally. Notice how the verb changes person and tense as the conversation moves, and how the complements stay the same kind of situation: the city with walls, the castle on the hill, the border with soldiers and the body with exercise.

Dialogue 1: talking about the city with walls

Ana: ¿Tú fortificas la ciudad con murallas? — "Do you fortify the city with walls?" Luis: Sí, yo fortifico la ciudad con murallas. — "I fortify the city with walls." Ana: ¿Y ayer? — "And yesterday?" Luis: Ayer, yo fortifiqué el castillo en la colina. — "Yesterday, I fortified the castle on the hill." Ana: Mañana, nosotros fortificaremos la frontera con soldados. — "Tomorrow, we will fortify the border with soldiers." Luis: Si pudiera, yo fortificaría el cuerpo con ejercicio. — "If I could, I would fortify the body with exercise." Ana: Antes, yo fortificaba el castillo en la colina. — "In the past, I used to fortify the castle on the hill." Luis: Yo he fortificado la ciudad con murallas. — "I have fortified the city with walls." Ana: ¡Fortifica la frontera con soldados! — "Fortify the border with soldiers!"

In this dialogue fortificar appears in the present, the preterite, the imperfect, the future, the conditional and the present perfect. That is the point: one verb, many tenses, and the complement tells you which situation you are in. Try the same dialogue with your own complements.

Dialogue 2: talking about the border with soldiers

Ana: Él fortifica la frontera con soldados. — "he/she fortifies the border with soldiers." Luis: ¿De verdad? ¿Él fortifica la frontera con soldados todos los días? — "Really? Does he/she fortifies the border with soldiers every day?" Ana: Sí, y ellos fortifican el cuerpo con ejercicio. — "they fortify the body with exercise." Luis: Ayer, ellos fortificaron la frontera con soldados. — "Yesterday, they fortified the border with soldiers." Ana: Espero que él fortifique el cuerpo con ejercicio. — "I hope that he/she fortifies the body with exercise." Luis: Mañana, él fortificará la frontera con soldados. — "Tomorrow, he/she will fortify the border with soldiers." Ana: Antes, nosotros fortificábamos el cuerpo con ejercicio. — "In the past, we used to fortify the body with exercise." Luis: Nosotros fortificamos la ciudad con murallas también. — "we fortify the city with walls too."

This dialogue shows fortificar in the third person and in the plural, which is where learners most often hesitate. Read it aloud with a partner, swapping the names and the complements for your own life, and the forms will start to feel automatic.

Common mistakes with fortificar

The errors learners actually make with fortificar in everyday use, each with the wrong form, the right form, and why it is wrong.

Mistake 1: Adding a reflexive pronoun that does not belong

  • Wrong: Yo me fortifico la ciudad con murallas.
  • Right: Yo fortifico la ciudad con murallas.
  • Why: fortificar is not reflexive, so there is no pronoun to add: Yo fortifico la ciudad con murallas. is the correct sentence.

Mistake 2: Using the infinitive as a conjugated form

  • Wrong: Yo fortificar la ciudad con murallas.
  • Right: Yo fortifico la ciudad con murallas.
  • Why: The infinitive fortificar is the dictionary form, not a conjugated form. In a sentence with yo you need the present-tense form fortifico.

Mistake 3: Using the present tense for yesterday

  • Wrong: Ayer, yo fortifico el castillo en la colina.
  • Right: Ayer, yo fortifiqué el castillo en la colina.
  • Why: Ayer means yesterday, so the action is finished and needs the preterite: Ayer, yo fortifiqué el castillo en la colina. — "Yesterday, I fortified the castle on the hill."

Mistake 4: Mixing up the gerund and the participle

  • Wrong: Estoy fortificado la frontera con soldados.
  • Right: Estoy fortificando la frontera con soldados.
  • Why: After estar you need the gerund fortificando for the progressive. The participle fortificado goes with haber in the perfect tenses (he fortificado), never after estar.

Mistake 5: Using the él form for nosotros

  • Wrong: Nosotros fortifica la ciudad con murallas.
  • Right: Nosotros fortificamos la ciudad con murallas.
  • Why: The person and the ending must match: nosotros takes fortificamos, while fortifica belongs to él and ella.

Quiz: fortificar in use

Test yourself with ten questions on fortificar. The answers are explained, so read them even when you get a question right.

1. What is the yo form of fortificar in the present tense?

  • (a) fortificas
  • (b) fortifica
  • (c) fortificamos
  • (d) fortifico

Answer: (d) fortifico. The yo form is fortifico.

2. What is the tú form of fortificar in the present tense?

  • (a) fortifica
  • (b) fortificamos
  • (c) fortificas
  • (d) fortifico

Answer: (c) fortificas. The tú form is fortificas.

3. What is the él/ella form of fortificar in the present tense?

  • (a) fortificamos
  • (b) fortifica
  • (c) fortifico
  • (d) fortificas

Answer: (b) fortifica. The él/ella form is fortifica.

4. Complete the sentence: Cada día, yo ___ la ciudad con murallas.

  • (a) fortifico
  • (b) fortificas
  • (c) fortifica
  • (d) fortificamos

Answer: (a) fortifico. The sentence needs the yo form fortifico.

5. Complete the sentence: Ayer, yo ___ el castillo en la colina.

  • (a) fortificaste
  • (b) fortificó
  • (c) fortificamos
  • (d) fortifiqué

Answer: (d) fortifiqué. Ayer needs the preterite, and the yo form is fortifiqué.

6. Complete the sentence: Antes, yo ___ la frontera con soldados.

  • (a) fortificábamos
  • (b) fortificabais
  • (c) fortificaba
  • (d) fortificabas

Answer: (c) fortificaba. Antes needs the imperfect, and the yo form is fortificaba.

7. Complete the sentence: Mañana, yo ___ el cuerpo con ejercicio.

  • (a) fortificaremos
  • (b) fortificaré
  • (c) fortificarás
  • (d) fortificará

Answer: (b) fortificaré. Mañana needs the future, and the yo form is fortificaré.

8. Complete the sentence: Yo ___ la ciudad con murallas.

  • (a) hemos fortificado
  • (b) he fortificado
  • (c) has fortificado
  • (d) ha fortificado

Answer: (b) he fortificado. The present perfect uses haber plus the participle: he fortificado.

9. Complete the sentence: Espero que él ___ la frontera con soldados.

  • (a) fortifiques
  • (b) fortifiquemos
  • (c) fortifiquéis
  • (d) fortifique

Answer: (d) fortifique. After espero que Spanish needs the subjunctive, and the él form is fortifique.

10. What does fortificar mean in English?

  • (a) to grow stronger
  • (b) to weaken
  • (c) to lose weight, to become thin
  • (d) to fortify

Answer: (d) to fortify. fortificar means "to fortify" in English.

Frequently asked questions about fortificar

What does fortificar mean?

fortificar means "to fortify" in English. Use it when you talk about the city with walls, the castle on the hill, the border with soldiers and the body with exercise — for example: Cada día, yo fortifico la ciudad con murallas. — "Every day, I fortify the city with walls."

Is there a reflexive form of fortificar?

No. fortificar is not reflexive, so it is used without a pronoun: Cada día, yo fortifico la ciudad con murallas. — "Every day, I fortify the city with walls."

What is the most common mistake with fortificar?

The spelling change. Watch the spelling: the c becomes qu before e, so the yo preterite is fortifiqué and the subjunctive forms start with qu, for example fortifique. Practise the yo form and the subjunctive forms until they feel automatic, and check them against the table on the conjugation page.

How can I practise fortificar?

Take the quiz above, then make your own sentences: change the person in each example, change the complement to something from your own life, and say the sentence aloud. The verb quiz and the verb translator on this site give you more practice with the same forms.

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