VERB TENSES
por WILSON LOPEZ
1. PAST PROGRESSIVE
1.1. KEYS: WAS-WERE + ING
2. SIMPLE TENSES
2.1. SIMPLE PRESENT
2.1.1. KEYS: A. IS-ARE-AM/ S-ES-IES/APPARENT NO CONJ./ DO-DOES
2.2. SIMPLE PAST
2.2.1. KEYS:WAS-WERE/ D-ED-IED/SPELLING CHANGE/ DID.
3. PROGRESSIVE TENSES
3.1. PRESENT PROGRESSIVE
3.1.1. KEYS: IS-ARE-AM + ING
4. FUTURE TENSES
4.1. FUTURE WILL
4.1.1. KEYS: WILL/ WON'T
4.2. FUTURE BE GOING TO
4.2.1. KEYS: IS-ARE-AM+GOING TO+VERB
5. PERFECT TENSES
5.1. PRESENT PERFECT
5.1.1. KEYS: HAS-HAVE + PAST PARTICIPLE
5.2. PAST PERFECT
5.2.1. KEY: HAD + PAST PARTICIPLE