I can offend you can offend he can offend we can offend you can offend they can offend
V-ing form
I can be offending you can be offending he can be offending we can be offending you can be offending they can be offending
Perfect
I can have offended you can have offended he can have offended we can have offended you can have offended they can have offended
V-ing perfect
I can have been offending you can have been offending he can have been offending we can have been offending you can have been offending they can have been offending
Negation
Simple form
I cannot offend you cannot offend he cannot offend we cannot offend you cannot offend they cannot offend
V-ing form
I cannot be offending you cannot be offending he cannot be offending we cannot be offending you cannot be offending they cannot be offending
Perfect
I cannot have offended you cannot have offended he cannot have offended we cannot have offended you cannot have offended they cannot have offended
V-ing perfect
I cannot have been offending you cannot have been offending he cannot have been offending we cannot have been offending you cannot have been offending they cannot have been offending
Interrogative form
Simple form
can I offend? can you offend? can he offend? can we offend? can you offend? can they offend?
V-ing form
can I be offending? can you be offending? can he be offending? can we be offending? can you be offending? can they be offending?
Perfect
can I have offended? can you have offended? can he have offended? can we have offended? can you have offended? can they have offended?
V-ing perfect
can I have been offending? can you have been offending? can he have been offending? can we have been offending? can you have been offending? can they have been offending?
Interro-negative form
Simple form
can I not offend? can you not offend? can he not offend? can we not offend? can you not offend? can they not offend?
V-ing form
can I not be offending? can you not be offending? can he not be offending? can we not be offending? can you not be offending? can they not be offending?
Perfect
can I not have offended? can you not have offended? can he not have offended? can we not have offended? can you not have offended? can they not have offended?
V-ing perfect
can I not have been offending? can you not have been offending? can he not have been offending? can we not have been offending? can you not have been offending? can they not have been offending?