Present Perfect Tense

This tense is used to declare that a betake work completed at the time the sentence is made or past events that have to do with now.

Verbal sentence:
( +) S+HAVE/HAS+V III
( - ) S+HAVE/HAS NOT+V III
( ? ) S+HAVE/HAS+S+V III?

Example:
( +) we have lived here for 4 years
( - ) We haven’t lived here for 4 years
( ? ) Have we lived here for 4 years?
answer: Yes, we have/No, we haven’t

Nominal sentence:
( +) S+HAVE/HAS+BEEN+(NOUN,ADJ,ADV)
( - ) S+HAVE/HAS+NOT+BEEN+(NOUN,ADJ,ADV)
( ? ) HVE/HAS+S+BEEN+(NOUN,ADJ,ADV)

Example:
( +) she has been beautiful since she was child
( - ) She has not been beautiful since she was child
( ? ) Has she beautiful since she was child?
answer: Yes, she has/No, she hasn’t