1. P RESENT PERFECT It is an action that has beginning in the past and duration in the present.

2. GRAMMATICAL STRUCTURE PRONOUN + VERB HAVE OR HAS + PAST PARTICIPLE + COMPLEMENT EXAMPLE: WE HAVE STUDIED ENGLIS ALL MORNING.

3. FOR THIRD PERSON: YOU SHOULD USE HAS FOR : SHE, HE AND IT FOR EXAMPLE: SHE HAS SUNG IN THE PARTY ALL NIGHTSHE HAS SUNG IN THE PARTY ALL NIGHT.

4. QUESTION AND NAGATIVE SENTENCES HAVE OR HAS + PRONOM + PAST PARTICIPLE + COMPLEMENT + ? FOR EXAMPLE HAVE YOU DANCED IN THE HOUSE ALL DAY ?

5. NEGATIVE SENTENCES : PRONOUN + HAVE OR HAS + NOT + PAST PARTICIPLE + COMPLEMENT. FOR EXAMPLE: I HAVE NOT RUN IN THE STREET ALL DAY.

6. SURVEY