English verb conjugation
CAN CATERWAUL

Regular verb: caterwaul - caterwauled - caterwauled

Affirmation

Simple form	V-ing form
I can caterwaul you can caterwaul he can caterwaul we can caterwaul you can caterwaul they can caterwaul	I can be caterwauling you can be caterwauling he can be caterwauling we can be caterwauling you can be caterwauling they can be caterwauling
Perfect	V-ing perfect
I can have caterwauled you can have caterwauled he can have caterwauled we can have caterwauled you can have caterwauled they can have caterwauled	I can have been caterwauling you can have been caterwauling he can have been caterwauling we can have been caterwauling you can have been caterwauling they can have been caterwauling

Negation

Simple form	V-ing form
I can't caterwaul you can't caterwaul he can't caterwaul we can't caterwaul you can't caterwaul they can't caterwaul	I can't be caterwauling you can't be caterwauling he can't be caterwauling we can't be caterwauling you can't be caterwauling they can't be caterwauling
Perfect	V-ing perfect
I can't have caterwauled you can't have caterwauled he can't have caterwauled we can't have caterwauled you can't have caterwauled they can't have caterwauled	I can't have been caterwauling you can't have been caterwauling he can't have been caterwauling we can't have been caterwauling you can't have been caterwauling they can't have been caterwauling

Interrogative form

Simple form	V-ing form
can I caterwaul? can you caterwaul? can he caterwaul? can we caterwaul? can you caterwaul? can they caterwaul?	can I be caterwauling? can you be caterwauling? can he be caterwauling? can we be caterwauling? can you be caterwauling? can they be caterwauling?
Perfect	V-ing perfect
can I have caterwauled? can you have caterwauled? can he have caterwauled? can we have caterwauled? can you have caterwauled? can they have caterwauled?	can I have been caterwauling? can you have been caterwauling? can he have been caterwauling? can we have been caterwauling? can you have been caterwauling? can they have been caterwauling?

Interro-negative form

Simple form	V-ing form
can't I caterwaul? can't you caterwaul? can't he caterwaul? can't we caterwaul? can't you caterwaul? can't they caterwaul?	can't I be caterwauling? can't you be caterwauling? can't he be caterwauling? can't we be caterwauling? can't you be caterwauling? can't they be caterwauling?
Perfect	V-ing perfect
can't I have caterwauled? can't you have caterwauled? can't he have caterwauled? can't we have caterwauled? can't you have caterwauled? can't they have caterwauled?	can't I have been caterwauling? can't you have been caterwauling? can't he have been caterwauling? can't we have been caterwauling? can't you have been caterwauling? can't they have been caterwauling?