could freeze
Verbo irregular: freeze - froze- frozen

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
-
-
it could freeze
-
-
- 	-
-
it could be freezing
-
-
- 	-
-
it could have frozen
-
-
- 	-
-
it could have been freezing
-
-
- 	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
-
-
it could not freeze
-
-
- 	-
-
it could not be freezing
-
-
- 	-
-
it could not have frozen
-
-
- 	-
-
it could not have been freezing
-
-
- 	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
-
-
could it freeze?
-
-
- 	-
-
could it be freezing?
-
-
- 	-
-
could it have frozen?
-
-
- 	-
-
could it have been freezing?
-
-
- 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
-
-
could it not freeze?
-
-
- 	-
-
could it not be freezing?
-
-
- 	-
-
could it not have frozen?
-
-
- 	-
-
could it not have been freezing?
-
-
-