PRESENT PERFECT

PRESENT PERFECT

The definition of the present perfect

  

Present perfect tense is a verb form used to express an action or situation that  has started in the past and still continues today or have been completed at some point in time in the past, but the effect is still on going.

Present perfect formula:

Present perfect tense is formed with the auxiliary verb "have" or "has", and the past participle(verb-3). Have used for I, you, they, we, while has to he, she, it, and the third person singular. While past participle can be either regular or irregular verb.

Present perfect tense formula for sentences of positive, negative and interrogative are as follows.

Sentence	Formula	Example       Present    perfect tense
Positive  (+)	S + aux. verb(have/has) + V-3/past participle	I have read the book
		He has left
Negatif   (-)	S + aux. verb(have/has) + not + V-3/past participle	I have not read the book
		He hasn’t left
Interogative (?)	aux. verb(have/has) + S + V-3/past participle	Have I read the book
		Has he left

functions and Present perfect tense

Function	Example sentences present perfect tense
present perfect tense to express the events of the past no matter when exactly happened.	Can you recommend the most delicious seafood restaurant in this town? Yes, I’ve visited all of them.
	I’ve read this book.
Presnt perfect tense to indicate that an action occurred repeatedly in the past (adverb of number can be used).	She has called you three times.
Presnt perfect tense to express the activity or situation that began in the past then continued until now (unfinished).	I have lived in Cilegon for 3 months.
	She has studied in French since April.
	My brother has worked already/lately/ up to now
Present perfect tense to talk about the event that has just occurred (adverb "just" can be used).	I’ve just sent you an email.
	The rain’s just stopped.