I can puree you can puree he can puree we can puree you can puree they can puree
V-ing form
I can be pureeing you can be pureeing he can be pureeing we can be pureeing you can be pureeing they can be pureeing
Perfect
I can have pureed you can have pureed he can have pureed we can have pureed you can have pureed they can have pureed
V-ing perfect
I can have been pureeing you can have been pureeing he can have been pureeing we can have been pureeing you can have been pureeing they can have been pureeing
Negation
Simple form
I cannot puree you cannot puree he cannot puree we cannot puree you cannot puree they cannot puree
V-ing form
I cannot be pureeing you cannot be pureeing he cannot be pureeing we cannot be pureeing you cannot be pureeing they cannot be pureeing
Perfect
I cannot have pureed you cannot have pureed he cannot have pureed we cannot have pureed you cannot have pureed they cannot have pureed
V-ing perfect
I cannot have been pureeing you cannot have been pureeing he cannot have been pureeing we cannot have been pureeing you cannot have been pureeing they cannot have been pureeing
Interrogative form
Simple form
can I puree? can you puree? can he puree? can we puree? can you puree? can they puree?
V-ing form
can I be pureeing? can you be pureeing? can he be pureeing? can we be pureeing? can you be pureeing? can they be pureeing?
Perfect
can I have pureed? can you have pureed? can he have pureed? can we have pureed? can you have pureed? can they have pureed?
V-ing perfect
can I have been pureeing? can you have been pureeing? can he have been pureeing? can we have been pureeing? can you have been pureeing? can they have been pureeing?
Interro-negative form
Simple form
can I not puree? can you not puree? can he not puree? can we not puree? can you not puree? can they not puree?
V-ing form
can I not be pureeing? can you not be pureeing? can he not be pureeing? can we not be pureeing? can you not be pureeing? can they not be pureeing?
Perfect
can I not have pureed? can you not have pureed? can he not have pureed? can we not have pureed? can you not have pureed? can they not have pureed?
V-ing perfect
can I not have been pureeing? can you not have been pureeing? can he not have been pureeing? can we not have been pureeing? can you not have been pureeing? can they not have been pureeing?