but are still ​remembered or are important today

​

EX: I ​HAVE TRAVELLED A LOT WITH MY FRIENDS.

it is important to know it perfectly.​

EXPERIENCES OR MEMORIES

​

AFFIRMATIVE STRUCTURE

SUBJECT + (​HAVE/HAS) + VERB PARTICIPLE + COMPLEMENT

​FOR EXAMPLE:

​

THEY HAVE BEEN ​IN AN RELATIONSHIP FOR 3 YEARS

​

SHORT FORM: THEY'VE BEEN IN A RELATIONSHIP FOR 3 YEARS.​

NEGATIVE STRUCTURE

SUBJECT + (​HAVE/HAS) + NOT + VERB PARTICIPLE + COMPLEMENT

​FOR EXAMPLE:

​

YOU HAVE NOT TALKED TO YOUR GRANDMA

​

SHORT FORM: YOU HAVEN'T TALKED TO YOUR GRANDMA

INTERROGATIVE STRUCTURE

(HAVE/HAS) + SUBJECT + VERB PARTICIPLE + COMPLEMENT

​FOR EXAMPLE:

​

HAVE YOU SEEN MY PHONE?

​

​