could puree
Regular verb: puree - pureed- pureed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?