English verb conjugation
COULD FREEZE

Irregular verb: freeze - froze - frozen

Affirmation

Simple form	V-ing form
I could freeze you could freeze he could freeze we could freeze you could freeze they could freeze	I could be freezing you could be freezing he could be freezing we could be freezing you could be freezing they could be freezing
Perfect	V-ing perfect
I could have frozen you could have frozen he could have frozen we could have frozen you could have frozen they could have frozen	I could have been freezing you could have been freezing he could have been freezing we could have been freezing you could have been freezing they could have been freezing

Negation

Simple form	V-ing form
I couldn't freeze you couldn't freeze he couldn't freeze we couldn't freeze you couldn't freeze they couldn't freeze	I couldn't be freezing you couldn't be freezing he couldn't be freezing we couldn't be freezing you couldn't be freezing they couldn't be freezing
Perfect	V-ing perfect
I couldn't have frozen you couldn't have frozen he couldn't have frozen we couldn't have frozen you couldn't have frozen they couldn't have frozen	I couldn't have been freezing you couldn't have been freezing he couldn't have been freezing we couldn't have been freezing you couldn't have been freezing they couldn't have been freezing

Interrogative form

Simple form	V-ing form
could I freeze? could you freeze? could he freeze? could we freeze? could you freeze? could they freeze?	could I be freezing? could you be freezing? could he be freezing? could we be freezing? could you be freezing? could they be freezing?
Perfect	V-ing perfect
could I have frozen? could you have frozen? could he have frozen? could we have frozen? could you have frozen? could they have frozen?	could I have been freezing? could you have been freezing? could he have been freezing? could we have been freezing? could you have been freezing? could they have been freezing?

Interro-negative form

Simple form	V-ing form
couldn't I freeze? couldn't you freeze? couldn't he freeze? couldn't we freeze? couldn't you freeze? couldn't they freeze?	couldn't I be freezing? couldn't you be freezing? couldn't he be freezing? couldn't we be freezing? couldn't you be freezing? couldn't they be freezing?
Perfect	V-ing perfect
couldn't I have frozen? couldn't you have frozen? couldn't he have frozen? couldn't we have frozen? couldn't you have frozen? couldn't they have frozen?	couldn't I have been freezing? couldn't you have been freezing? couldn't he have been freezing? couldn't we have been freezing? couldn't you have been freezing? couldn't they have been freezing?