-PRESENT PERFECT SIMPLE.
FORM.
· AFFIRMATIVE.
I/You have eaten.
He/She/It has eaten.
We/You/They have eaten.
·NEGATIVE.
I/You have not (haven't) eaten.
He/She/It has not (hasn't) eaten.
We/You/They have not (haven't) eaten.
·INTERROGATIVE.
Have I/you eaten?
Has he/she/it eaten?
Have we/you/they eaten?
USES.
An action that began in the past and continues until the present.
An action that took place at an undetermined time in the past, but is connected to the present.
EXAMPLES.
She has studied English for three years.
I have downloaded the document.
TIME EXPRESSIONS.
Never, ever, already, just, yet, recently, lately, how long ...?, for, since, in recent years.
FORM.
· AFFIRMATIVE.
I/You have eaten.
He/She/It has eaten.
We/You/They have eaten.
·NEGATIVE.
I/You have not (haven't) eaten.
He/She/It has not (hasn't) eaten.
We/You/They have not (haven't) eaten.
·INTERROGATIVE.
Have I/you eaten?
Has he/she/it eaten?
Have we/you/they eaten?
USES.
An action that began in the past and continues until the present.
An action that took place at an undetermined time in the past, but is connected to the present.
EXAMPLES.
She has studied English for three years.
I have downloaded the document.
TIME EXPRESSIONS.
Never, ever, already, just, yet, recently, lately, how long ...?, for, since, in recent years.
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