English verb conjugation
COULD WHITTLE

Regular verb: whittle - whittled - whittled

Affirmation

Simple form	V-ing form
I could whittle you could whittle he could whittle we could whittle you could whittle they could whittle	I could be whittling you could be whittling he could be whittling we could be whittling you could be whittling they could be whittling
Perfect	V-ing perfect
I could have whittled you could have whittled he could have whittled we could have whittled you could have whittled they could have whittled	I could have been whittling you could have been whittling he could have been whittling we could have been whittling you could have been whittling they could have been whittling

Negation

Simple form	V-ing form
I couldn't whittle you couldn't whittle he couldn't whittle we couldn't whittle you couldn't whittle they couldn't whittle	I couldn't be whittling you couldn't be whittling he couldn't be whittling we couldn't be whittling you couldn't be whittling they couldn't be whittling
Perfect	V-ing perfect
I couldn't have whittled you couldn't have whittled he couldn't have whittled we couldn't have whittled you couldn't have whittled they couldn't have whittled	I couldn't have been whittling you couldn't have been whittling he couldn't have been whittling we couldn't have been whittling you couldn't have been whittling they couldn't have been whittling

Interrogative form

Simple form	V-ing form
could I whittle? could you whittle? could he whittle? could we whittle? could you whittle? could they whittle?	could I be whittling? could you be whittling? could he be whittling? could we be whittling? could you be whittling? could they be whittling?
Perfect	V-ing perfect
could I have whittled? could you have whittled? could he have whittled? could we have whittled? could you have whittled? could they have whittled?	could I have been whittling? could you have been whittling? could he have been whittling? could we have been whittling? could you have been whittling? could they have been whittling?

Interro-negative form

Simple form	V-ing form
couldn't I whittle? couldn't you whittle? couldn't he whittle? couldn't we whittle? couldn't you whittle? couldn't they whittle?	couldn't I be whittling? couldn't you be whittling? couldn't he be whittling? couldn't we be whittling? couldn't you be whittling? couldn't they be whittling?
Perfect	V-ing perfect
couldn't I have whittled? couldn't you have whittled? couldn't he have whittled? couldn't we have whittled? couldn't you have whittled? couldn't they have whittled?	couldn't I have been whittling? couldn't you have been whittling? couldn't he have been whittling? couldn't we have been whittling? couldn't you have been whittling? couldn't they have been whittling?