English verb conjugation
CAN TRAWL

Regular verb: trawl - trawled - trawled

Affirmation

Simple form	V-ing form
I can trawl you can trawl he can trawl we can trawl you can trawl they can trawl	I can be trawling you can be trawling he can be trawling we can be trawling you can be trawling they can be trawling
Perfect	V-ing perfect
I can have trawled you can have trawled he can have trawled we can have trawled you can have trawled they can have trawled	I can have been trawling you can have been trawling he can have been trawling we can have been trawling you can have been trawling they can have been trawling

Negation

Simple form	V-ing form
I can't trawl you can't trawl he can't trawl we can't trawl you can't trawl they can't trawl	I can't be trawling you can't be trawling he can't be trawling we can't be trawling you can't be trawling they can't be trawling
Perfect	V-ing perfect
I can't have trawled you can't have trawled he can't have trawled we can't have trawled you can't have trawled they can't have trawled	I can't have been trawling you can't have been trawling he can't have been trawling we can't have been trawling you can't have been trawling they can't have been trawling

Interrogative form

Simple form	V-ing form
can I trawl? can you trawl? can he trawl? can we trawl? can you trawl? can they trawl?	can I be trawling? can you be trawling? can he be trawling? can we be trawling? can you be trawling? can they be trawling?
Perfect	V-ing perfect
can I have trawled? can you have trawled? can he have trawled? can we have trawled? can you have trawled? can they have trawled?	can I have been trawling? can you have been trawling? can he have been trawling? can we have been trawling? can you have been trawling? can they have been trawling?

Interro-negative form

Simple form	V-ing form
can't I trawl? can't you trawl? can't he trawl? can't we trawl? can't you trawl? can't they trawl?	can't I be trawling? can't you be trawling? can't he be trawling? can't we be trawling? can't you be trawling? can't they be trawling?
Perfect	V-ing perfect
can't I have trawled? can't you have trawled? can't he have trawled? can't we have trawled? can't you have trawled? can't they have trawled?	can't I have been trawling? can't you have been trawling? can't he have been trawling? can't we have been trawling? can't you have been trawling? can't they have been trawling?