English verb conjugation
COULD DOODLE

Regular verb: doodle - doodled - doodled

Affirmation

Simple form	V-ing form
I could doodle you could doodle he could doodle we could doodle you could doodle they could doodle	I could be doodling you could be doodling he could be doodling we could be doodling you could be doodling they could be doodling
Perfect	V-ing perfect
I could have doodled you could have doodled he could have doodled we could have doodled you could have doodled they could have doodled	I could have been doodling you could have been doodling he could have been doodling we could have been doodling you could have been doodling they could have been doodling

Negation

Simple form	V-ing form
I couldn't doodle you couldn't doodle he couldn't doodle we couldn't doodle you couldn't doodle they couldn't doodle	I couldn't be doodling you couldn't be doodling he couldn't be doodling we couldn't be doodling you couldn't be doodling they couldn't be doodling
Perfect	V-ing perfect
I couldn't have doodled you couldn't have doodled he couldn't have doodled we couldn't have doodled you couldn't have doodled they couldn't have doodled	I couldn't have been doodling you couldn't have been doodling he couldn't have been doodling we couldn't have been doodling you couldn't have been doodling they couldn't have been doodling

Interrogative form

Simple form	V-ing form
could I doodle? could you doodle? could he doodle? could we doodle? could you doodle? could they doodle?	could I be doodling? could you be doodling? could he be doodling? could we be doodling? could you be doodling? could they be doodling?
Perfect	V-ing perfect
could I have doodled? could you have doodled? could he have doodled? could we have doodled? could you have doodled? could they have doodled?	could I have been doodling? could you have been doodling? could he have been doodling? could we have been doodling? could you have been doodling? could they have been doodling?

Interro-negative form

Simple form	V-ing form
couldn't I doodle? couldn't you doodle? couldn't he doodle? couldn't we doodle? couldn't you doodle? couldn't they doodle?	couldn't I be doodling? couldn't you be doodling? couldn't he be doodling? couldn't we be doodling? couldn't you be doodling? couldn't they be doodling?
Perfect	V-ing perfect
couldn't I have doodled? couldn't you have doodled? couldn't he have doodled? couldn't we have doodled? couldn't you have doodled? couldn't they have doodled?	couldn't I have been doodling? couldn't you have been doodling? couldn't he have been doodling? couldn't we have been doodling? couldn't you have been doodling? couldn't they have been doodling?