SIMPLE PAST vs PRESENT PERFECT

SIMPLE PAST

PRESENT PERFECT

AFFIRMATIVE

I saw

you saw

he saw

she saw

it saw

we saw

you saw

they saw

NEGATIVE

I didn’t see

you didn’t see

he didn’t see

she didn’t see

it didn’t see

we didn’t see

you didn’t see

they didn’t see

INTERROGATIVE

Did I see? Yes, you did

Did you see? No, I didn’t

Did he see? Yes, he did

Did she see? No, she didn’t

Did it see? Yes, it did

Did we see? No, you didn’t

Did you see? Yes, we did

Did they see? No, they didn’t

RELATED EXPRESSIONS:

yesterday, this morning, … ago (5 years ago), last… (last week, last summer), in +

years (in 1998), when … (when I was a child), etc…

EXAMPLE:

I saw Mary yesterday.

REMEMBER!!!: REGULAR PASTS en in -ed

AFFIRMATIVE

I have seen (I’ve seen)

you have seen (you’ve seen)

he has seen (he’s seen)

she has seen (she’s seen)

it has seen (it’s seen)

we have seen (we’ve seen)

you have seen (you’ve seen)

they have seen (they’ve seen)

NEGATIVE

I haven’t seen

you haven’t seen

he hasn’t seen

she hasn’t seen

it hasn’t seen

we haven’t seen

you haven’t seen

they haven’t seen

INTERROGATIVE

Have I seen? Yes, you have

Have you seen? No, I haven’t

Has he seen? Yes, he has

Has she seen? No, she hasn’t

Has it seen? Yes, it has

Have we seen? No, you haven’t

Have you seen? Yes, we have

Have they seen? No, they haven’t

RELATED EXPRESSIONS:

ever, never, for… (for 2 years), since… (since last June), up to now, so far,

recently, lately, it’s the first/second time…, never in my life, just, already, …

yet?, not … yet, etc…

EXAMPLES:

Have you ever been to Egypt?

It’s the first time I have tasted Japanese food.

I have just finished my homework.

I haven’t seen “The Lord of the Rings” yet.

REMEMBER!!!: REGULAR PAST PARTICIPLES en in -ed