have not seen

haven´t saw

hasn't seen

haven't played

hasn't played

hasn't play

hasn't practice

have already download

have already downloaded

has already download

has already downloaded

has caught just

has just catch

have just caught

has just caught

haven't yet finished our homework.

haven't finished our homework yet.

haven't already finished our homework.

haven't finished our homework still.

still haven't found

haven't still found

haven't found yet

haven't already found

I haven't heard the news.

I will hear the news.

I heard the news last week.

He, she, it

You, I, We, They

Is, Am, Are

Have

Do

Has

Does

I swam in the beach.

I swim in the beach

I have swum in the beach

already

ever

just

yet

Yes, he is.

Yes, he has.

Yes, he did.

Yes, he have.

For actions which happened in the past, but we don`t mention when exactly.

For actions that happened in the past and their results are obvious in the present.

for actions that happened in the present simple.

have watch

has watch

have watched

has watched

HAVE + PAST PARTICIPLE

HAVE / HAS + PAST PARTICIPLE

AM/ IS/ ARE + PAST PARTICIPLE

AM / IS / ARE + V-ING

never have eaten

never have ate

has never eaten

have never eaten

has been

have been

wasn't

has did

has already done

have done

hasn't done

have begun

has began

have began

has begun

visited

visit

visited yet

Jason and Clara has been friends for more than 10 years.

Jason and Clara have been friends for more than 10 years.

Jason and Clara have be friends for more than 10 years.

Jason and Clara have being friends for more than 10 years.

Have he called María?

Has he called María?

Have he call María?

Have he calling María?

I have been

I has been

I have be

I have was