English verb conjugation
COULD SLED

Regular verb: sled - sleded - sleded

Affirmation

Simple form	V-ing form
I could sled you could sled he could sled we could sled you could sled they could sled	I could be sleding you could be sleding he could be sleding we could be sleding you could be sleding they could be sleding
Perfect	V-ing perfect
I could have sleded you could have sleded he could have sleded we could have sleded you could have sleded they could have sleded	I could have been sleding you could have been sleding he could have been sleding we could have been sleding you could have been sleding they could have been sleding

Negation

Simple form	V-ing form
I couldn't sled you couldn't sled he couldn't sled we couldn't sled you couldn't sled they couldn't sled	I couldn't be sleding you couldn't be sleding he couldn't be sleding we couldn't be sleding you couldn't be sleding they couldn't be sleding
Perfect	V-ing perfect
I couldn't have sleded you couldn't have sleded he couldn't have sleded we couldn't have sleded you couldn't have sleded they couldn't have sleded	I couldn't have been sleding you couldn't have been sleding he couldn't have been sleding we couldn't have been sleding you couldn't have been sleding they couldn't have been sleding

Interrogative form

Simple form	V-ing form
could I sled? could you sled? could he sled? could we sled? could you sled? could they sled?	could I be sleding? could you be sleding? could he be sleding? could we be sleding? could you be sleding? could they be sleding?
Perfect	V-ing perfect
could I have sleded? could you have sleded? could he have sleded? could we have sleded? could you have sleded? could they have sleded?	could I have been sleding? could you have been sleding? could he have been sleding? could we have been sleding? could you have been sleding? could they have been sleding?

Interro-negative form

Simple form	V-ing form
couldn't I sled? couldn't you sled? couldn't he sled? couldn't we sled? couldn't you sled? couldn't they sled?	couldn't I be sleding? couldn't you be sleding? couldn't he be sleding? couldn't we be sleding? couldn't you be sleding? couldn't they be sleding?
Perfect	V-ing perfect
couldn't I have sleded? couldn't you have sleded? couldn't he have sleded? couldn't we have sleded? couldn't you have sleded? couldn't they have sleded?	couldn't I have been sleding? couldn't you have been sleding? couldn't he have been sleding? couldn't we have been sleding? couldn't you have been sleding? couldn't they have been sleding?