I can overextend you can overextend she can overextend we can overextend you can overextend they can overextend
V-ing form
I can be overextending you can be overextending she can be overextending we can be overextending you can be overextending they can be overextending
Perfect
I can have overextended you can have overextended she can have overextended we can have overextended you can have overextended they can have overextended
V-ing perfect
I can have been overextending you can have been overextending she can have been overextending we can have been overextending you can have been overextending they can have been overextending
Negation
Simple form
I cannot overextend you cannot overextend she cannot overextend we cannot overextend you cannot overextend they cannot overextend
V-ing form
I cannot be overextending you cannot be overextending she cannot be overextending we cannot be overextending you cannot be overextending they cannot be overextending
Perfect
I cannot have overextended you cannot have overextended she cannot have overextended we cannot have overextended you cannot have overextended they cannot have overextended
V-ing perfect
I cannot have been overextending you cannot have been overextending she cannot have been overextending we cannot have been overextending you cannot have been overextending they cannot have been overextending
Interrogative form
Simple form
can I overextend? can you overextend? can she overextend? can we overextend? can you overextend? can they overextend?
V-ing form
can I be overextending? can you be overextending? can she be overextending? can we be overextending? can you be overextending? can they be overextending?
Perfect
can I have overextended? can you have overextended? can she have overextended? can we have overextended? can you have overextended? can they have overextended?
V-ing perfect
can I have been overextending? can you have been overextending? can she have been overextending? can we have been overextending? can you have been overextending? can they have been overextending?
Interro-negative form
Simple form
can I not overextend? can you not overextend? can she not overextend? can we not overextend? can you not overextend? can they not overextend?
V-ing form
can I not be overextending? can you not be overextending? can she not be overextending? can we not be overextending? can you not be overextending? can they not be overextending?
Perfect
can I not have overextended? can you not have overextended? can she not have overextended? can we not have overextended? can you not have overextended? can they not have overextended?
V-ing perfect
can I not have been overextending? can you not have been overextending? can she not have been overextending? can we not have been overextending? can you not have been overextending? can they not have been overextending?