English verb conjugation
COULD PUREE

Regular verb: puree - pureed - pureed

Affirmation

Simple form	V-ing form
I could puree you could puree he could puree we could puree you could puree they could puree	I could be pureeing you could be pureeing he could be pureeing we could be pureeing you could be pureeing they could be pureeing
Perfect	V-ing perfect
I could have pureed you could have pureed he could have pureed we could have pureed you could have pureed they could have pureed	I could have been pureeing you could have been pureeing he could have been pureeing we could have been pureeing you could have been pureeing they could have been pureeing

Negation

Simple form	V-ing form
I couldn't puree you couldn't puree he couldn't puree we couldn't puree you couldn't puree they couldn't puree	I couldn't be pureeing you couldn't be pureeing he couldn't be pureeing we couldn't be pureeing you couldn't be pureeing they couldn't be pureeing
Perfect	V-ing perfect
I couldn't have pureed you couldn't have pureed he couldn't have pureed we couldn't have pureed you couldn't have pureed they couldn't have pureed	I couldn't have been pureeing you couldn't have been pureeing he couldn't have been pureeing we couldn't have been pureeing you couldn't have been pureeing they couldn't have been pureeing

Interrogative form

Simple form	V-ing form
could I puree? could you puree? could he puree? could we puree? could you puree? could they puree?	could I be pureeing? could you be pureeing? could he be pureeing? could we be pureeing? could you be pureeing? could they be pureeing?
Perfect	V-ing perfect
could I have pureed? could you have pureed? could he have pureed? could we have pureed? could you have pureed? could they have pureed?	could I have been pureeing? could you have been pureeing? could he have been pureeing? could we have been pureeing? could you have been pureeing? could they have been pureeing?

Interro-negative form

Simple form	V-ing form
couldn't I puree? couldn't you puree? couldn't he puree? couldn't we puree? couldn't you puree? couldn't they puree?	couldn't I be pureeing? couldn't you be pureeing? couldn't he be pureeing? couldn't we be pureeing? couldn't you be pureeing? couldn't they be pureeing?
Perfect	V-ing perfect
couldn't I have pureed? couldn't you have pureed? couldn't he have pureed? couldn't we have pureed? couldn't you have pureed? couldn't they have pureed?	couldn't I have been pureeing? couldn't you have been pureeing? couldn't he have been pureeing? couldn't we have been pureeing? couldn't you have been pureeing? couldn't they have been pureeing?