English verb conjugation
COULD TRAWL

Regular verb: trawl - trawled - trawled

Affirmation

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

Negation

Simple form	V-ing form
I could not trawl you could not trawl he could not trawl we could not trawl you could not trawl they could not trawl	I could not be trawling you could not be trawling he could not be trawling we could not be trawling you could not be trawling they could not be trawling
Perfect	V-ing perfect
I could not have trawled you could not have trawled he could not have trawled we could not have trawled you could not have trawled they could not have trawled	I could not have been trawling you could not have been trawling he could not have been trawling we could not have been trawling you could not have been trawling they could not have been trawling

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not trawl? could you not trawl? could he not trawl? could we not trawl? could you not trawl? could they not trawl?	could I not be trawling? could you not be trawling? could he not be trawling? could we not be trawling? could you not be trawling? could they not be trawling?
Perfect	V-ing perfect
could I not have trawled? could you not have trawled? could he not have trawled? could we not have trawled? could you not have trawled? could they not have trawled?	could I not have been trawling? could you not have been trawling? could he not have been trawling? could we not have been trawling? could you not have been trawling? could they not have been trawling?