English verb conjugation
COULD CHORTLE

Regular verb: chortle - chortled - chortled

Affirmation

Simple form	V-ing form
I could chortle you could chortle he could chortle we could chortle you could chortle they could chortle	I could be chortling you could be chortling he could be chortling we could be chortling you could be chortling they could be chortling
Perfect	V-ing perfect
I could have chortled you could have chortled he could have chortled we could have chortled you could have chortled they could have chortled	I could have been chortling you could have been chortling he could have been chortling we could have been chortling you could have been chortling they could have been chortling

Negation

Simple form	V-ing form
I couldn't chortle you couldn't chortle he couldn't chortle we couldn't chortle you couldn't chortle they couldn't chortle	I couldn't be chortling you couldn't be chortling he couldn't be chortling we couldn't be chortling you couldn't be chortling they couldn't be chortling
Perfect	V-ing perfect
I couldn't have chortled you couldn't have chortled he couldn't have chortled we couldn't have chortled you couldn't have chortled they couldn't have chortled	I couldn't have been chortling you couldn't have been chortling he couldn't have been chortling we couldn't have been chortling you couldn't have been chortling they couldn't have been chortling

Interrogative form

Simple form	V-ing form
could I chortle? could you chortle? could he chortle? could we chortle? could you chortle? could they chortle?	could I be chortling? could you be chortling? could he be chortling? could we be chortling? could you be chortling? could they be chortling?
Perfect	V-ing perfect
could I have chortled? could you have chortled? could he have chortled? could we have chortled? could you have chortled? could they have chortled?	could I have been chortling? could you have been chortling? could he have been chortling? could we have been chortling? could you have been chortling? could they have been chortling?

Interro-negative form

Simple form	V-ing form
couldn't I chortle? couldn't you chortle? couldn't he chortle? couldn't we chortle? couldn't you chortle? couldn't they chortle?	couldn't I be chortling? couldn't you be chortling? couldn't he be chortling? couldn't we be chortling? couldn't you be chortling? couldn't they be chortling?
Perfect	V-ing perfect
couldn't I have chortled? couldn't you have chortled? couldn't he have chortled? couldn't we have chortled? couldn't you have chortled? couldn't they have chortled?	couldn't I have been chortling? couldn't you have been chortling? couldn't he have been chortling? couldn't we have been chortling? couldn't you have been chortling? couldn't they have been chortling?