Question 1

Why is it cierres and not cerres or cierras?

Accepted Answer

Cierres is the present subjunctive of the verb cerrar (to close) for the tú (you) form. Because it is an -ar verb, its endings change to -e in the subjunctive. It also has a stem change where the e becomes ie, which gives us cierres rather than cerres.

Question 2

Why do we need the subjunctive cierres here instead of the normal present tense cierras?

Accepted Answer

We use the subjunctive because of the phrase necesito que (I need that...). When you express a need, wish, or request for someone else to do an action, the verb for that second person must be in the subjunctive.

Question 3

Would the e still change to ie if we used the nosotros (we) form in this sentence?

Accepted Answer

No, it would not! For stem-changing -ar and -er verbs in the present subjunctive, the stem change happens in the boot shape (I, you, he/she/it, they) but never in the nosotros or vosotros forms. If you needed us to close the blind, you would say necesito que cerremos la persiana.

Question 4

What exactly is a persiana?

Accepted Answer

In Spain, la persiana typically refers to a heavy roller blind or shutter, often built into the outside of the window, which is rolled down to block out the intense sun and heat.

Necesito que cierres la persiana, por favor.

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