would happen
Verbo regular: happen - happened- happened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
-
-
it would happen
-
-
- 	-
-
it would be happening
-
-
- 	-
-
it would have happened
-
-
- 	-
-
it would have been happening
-
-
- 	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
-
-
it would not happen
-
-
- 	-
-
it would not be happening
-
-
- 	-
-
it would not have happened
-
-
- 	-
-
it would not have been happening
-
-
- 	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
-
-
would it happen?
-
-
- 	-
-
would it be happening?
-
-
- 	-
-
would it have happened?
-
-
- 	-
-
would it have been happening?
-
-
- 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
-
-
would it not happen?
-
-
- 	-
-
would it not be happening?
-
-
- 	-
-
would it not have happened?
-
-
- 	-
-
would it not have been happening?
-
-
-