Answer:
This question is incomplete. Here is the complete question:
Choose the correct form of the verb to tell what everyone does.
Uds. _____ el numero cuarenta.
usar
- usamos
- usas
- usan
Answer: Uds. usan el número cuarenta.
Explanation:
In this exercise, you have to pay attention to the agreement between the subject (ustedes) and the verb (usar). In order to choose the correct verb, you have to take into account the subject of the sentence and look at the conjugations of the verb "usar" in the present of the indicative mood:
(yo) uso
(tu / vos) usas / usás
(él / usted) usa
(nosotros) usamos
(vosotros) usáis
<u>(ellos / ustedes) usan</u>
In the sentence above, the subject is "ustedes" (3rd person plural) which requires the form of the verb verb "usar" conjugated in the third person plural "usan". Therefore, <u>"usan" is the correct answer.</u>
As to the other options, here is why they are not possible in this sentence:
Usar: Infinitive verb form. Verbs in the infinitive form are not conjugated and do not indicate anything about who is performing an action or at what point in time the action is taking place.
Usamos: Verb conjugated in the present of the 1st person singular "nosotros" (which is not the case of our sentence).
Usas: Verb conjugated in the present of the 2nd person "tu" (which is neither the case of our sentence).