Today's Topic (22 September 2016)

1. Simple present tense
Rule:
(+) S + V₁ ( s/es)
(-) S + do/does + not + V₁
(?) do/does + S + V₁

2. Simple past tense
Rule:
(+) S + V₂
(-) S + did + not + V₁
(?) did + S + V₁ 

3. Simple present/past continuous
Rule :
(+) S + be+ V_ing
(-) S + be + not + V_ing
(?) be + S + V_ing
 
4. Simple Future tense
Rule :
(+) S + will + V₁
(-) S + will + not + V₁
(?) will + S + V₁  

5. Present Perfect tense
Rule :
(+) S+ has/have+ V₃
(-) S + has/have + not + V₃
(?) has/have + S + V₃