La S significa "sujeto", y (Wh-) son las question words (palabras de pregunta: what, when, where...), que se pueden usar o no.
Aquí os dejo un enlace a un ejercicio con un buen mix: Ejercicios del presente simple, presente continuo o pasado simple
Tiempos
|
Present simple
(Yo juego)
|
Present continuous
(Yo estoy jugando)
|
Past simple
(Yo jugué)
|
Uses
|
× Hechos
× Rutinas
× Cosas que no van a cambiar
× Verdades universales
× Gustos
× Llevan adverbios de frecuencia (always, often)
|
× Acciones que ocurren en el momento de hablar
× Acciones que ocurren a lo largo de un periodo de tiempo.
× Planes futuros.
× c expresiones de tiempo: right now, now, at the moment.
|
× Acciones que empiezan y acaban en el pasado.
× Descripciones de hechos pasados.
× Llevan palabras como: ago, yesterday, last month/week/day, etc.
|
Affirmative
|
S + verb
S (3rd pers. sing.) + verb – s/es
You always drink water.
He never watches TV.
|
S + to be (am, are, is) + verb – ing
You are drinking water.
He is watching TV now.
|
S + verb – ed
S + irregular verb
You drank water.
He watched TV yesterday.
|
Negative
|
S + don’t + verb
S (3rd pers. sing.) doesn’t + verb
You don’t drink water.
He doesn’t watch TV.
|
S + to be (am, are, is) + not + verb – ing
You aren’t drinking water.
He isn’t watching TV.
|
S + didn’t + verb
You didn’t drink water.
He didn’t watch TV.
|
Interrogative
|
(Wh-) + Do + S + verb ?
(Wh-) + Does + S (3rd pers. sing.) + verb ?
Do you drink water?
Yes, I do/ No, I don’t.
What does he watch?
He watches TV.
|
(Wh-) + To be (am, are, is) + S + verb – ing ?
Are you drinking water?
Yes, I am/ No, I’m not.
What is he watching?
He is watching TV.
|
(Wh-) Did + S + verb?
Did you drink water?
Yes, I did/ No, I didn’t.
What did he watch?
He watched TV
|
