... clauseIf + S + V1/ -es + O, S + will/ shall/ can/ may + (not) + V1 (1)If + S + V1/ -es + O, S + (aux + not) + V1 (2) If + S + V1/ -es + O, (Don’t ) V1(3)Uses: - To express real/ ... present/future:If + S + V1/ -es + O, S + will/ shall/ can/ may + (not) + V1 (1)Ex: If it rains, we will stay at home. (2) : Possible action:If + S + V1/ -es + O, S + (aux + not) + V1 (2) Can: Permission. ... Form:If clause Main clauseIf + S + V 2/ -ed + O, S + would/should/could/might + (not) + V1 Ex: If she came early, she would meet many people.Uses: - To express unreal/ impossible actions...