I can caterwaul you can caterwaul she can caterwaul we can caterwaul you can caterwaul they can caterwaul
V-ing form
I can be caterwauling you can be caterwauling she can be caterwauling we can be caterwauling you can be caterwauling they can be caterwauling
Perfect
I can have caterwauled you can have caterwauled she can have caterwauled we can have caterwauled you can have caterwauled they can have caterwauled
V-ing perfect
I can have been caterwauling you can have been caterwauling she can have been caterwauling we can have been caterwauling you can have been caterwauling they can have been caterwauling
Negation
Simple form
I cannot caterwaul you cannot caterwaul she cannot caterwaul we cannot caterwaul you cannot caterwaul they cannot caterwaul
V-ing form
I cannot be caterwauling you cannot be caterwauling she cannot be caterwauling we cannot be caterwauling you cannot be caterwauling they cannot be caterwauling
Perfect
I cannot have caterwauled you cannot have caterwauled she cannot have caterwauled we cannot have caterwauled you cannot have caterwauled they cannot have caterwauled
V-ing perfect
I cannot have been caterwauling you cannot have been caterwauling she cannot have been caterwauling we cannot have been caterwauling you cannot have been caterwauling they cannot have been caterwauling
Interrogative form
Simple form
can I caterwaul? can you caterwaul? can she caterwaul? can we caterwaul? can you caterwaul? can they caterwaul?
V-ing form
can I be caterwauling? can you be caterwauling? can she be caterwauling? can we be caterwauling? can you be caterwauling? can they be caterwauling?
Perfect
can I have caterwauled? can you have caterwauled? can she have caterwauled? can we have caterwauled? can you have caterwauled? can they have caterwauled?
V-ing perfect
can I have been caterwauling? can you have been caterwauling? can she have been caterwauling? can we have been caterwauling? can you have been caterwauling? can they have been caterwauling?
Interro-negative form
Simple form
can I not caterwaul? can you not caterwaul? can she not caterwaul? can we not caterwaul? can you not caterwaul? can they not caterwaul?
V-ing form
can I not be caterwauling? can you not be caterwauling? can she not be caterwauling? can we not be caterwauling? can you not be caterwauling? can they not be caterwauling?
Perfect
can I not have caterwauled? can you not have caterwauled? can she not have caterwauled? can we not have caterwauled? can you not have caterwauled? can they not have caterwauled?
V-ing perfect
can I not have been caterwauling? can you not have been caterwauling? can she not have been caterwauling? can we not have been caterwauling? can you not have been caterwauling? can they not have been caterwauling?