Presente Simple – (Simple Present Tense)
| subject | + | auxiliary verb | + | main verb |
| do | base |
There are three important exceptions:
- For positive sentences, we do not normally use the auxiliary.
- For the 3rd person singular (he, she, it), we add s to the main verb or es to the auxiliary.
- For the verb to be, we do not use an auxiliary, even for questions and negatives.
Examples:
- He does not [doesn't] eat vegetables .
- She works in a hospital.
- Elephants live in Africa.
- Bogota is in Columbia.
- Do children like animals?
- Adults do not [don't] know everything.
He seds a letter today They send a letter today
He doesn't send a letter today They don't send a letter today
Does he send a letter today? Do they send a letter today?
Pasado Simple – (Simple Past Tense)
She cleaned her house. Ella limpió su casa.
| Verb | Past Simple |
| be | was (I, he, she, it) / were (you, we, they) |
| do | did |
| have | had |
- I didn't see a play yesterday.
- Last year, I traveled to Japan.
- Last year, I didn't travel to Korea.
- Did you have dinner last night?
- She washed her car.
- He didn't wash his car.
He/We swam in the pool yesterdayHe/We didn't swim in the pool yesterdayDid he/we swim in the pool yesterday?
| Sujeto | Auxiliar (to be) | Gerundio |
| I | am | talking, eating, learning, doing, going... |
| He, She, It | is | talking, eating, learning, doing, going... |
| You, We, They | are | talking, eating, learning, doing, going... |
- I'm going to the party tonight.
- He's not [He isn't] coming to class tomorrow.
- Are you working next week?
| Affirmative | Negative | Interrogative |
I was going
|
I was not going
|
Was I going?
|
You were going
|
You were not going
|
Were you going?
|
He was going
|
He was not going
|
Was he going?
|
She was going
|
She was not going
|
Was she going?
|
It was going
|
It was not going
|
Was it going?
|
We were going
|
We were not going
|
Were we going?
|
You were going
|
You were not going
|
Were you going?
|
They were going
|
They were not going
|
Were they going?
|
