Grammar resume 1

Regular verbs

Simple present

The main element in the simple present is the adition of an ending -s in the 3rd person singular, all the other forms are just like the infinitive.

To look
I look
you look
he ( she , it) looks
we look
you look
they look

Verbos regulares

Presente simple

La única marca del presente simple es la adición de una -s en la tercera persona del singular, todas las demas formas son identicas a la forma del infinitivo.

Auxiliary verb to do

This verb is used for interrogative or negative sentences. Only auxiliary verbs or modals (also called defective verbs) don't use it.

All other verbs use it as to carry the tense and the marks of negation or any other.

Af. She looks happy.
Neg. She doesn't look happy.
Int. Does she look happy?

El verbo auxiliar to do

Este verbo se usa para construir las oraciones negativas e interrogativas. Solo los verbos auxiliares y los modales (también llamados defectivos) no lo usan.

Todos los demás verbos lo usan para llevar las marcas de tiempo, negación o cualquier otra.

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