English verb conjugation
COULD DOGSLED

Regular verb: dogsled - dogsleded - dogsleded

Affirmation

Simple form	V-ing form
I could dogsled you could dogsled he could dogsled we could dogsled you could dogsled they could dogsled	I could be dogsleding you could be dogsleding he could be dogsleding we could be dogsleding you could be dogsleding they could be dogsleding
Perfect	V-ing perfect
I could have dogsleded you could have dogsleded he could have dogsleded we could have dogsleded you could have dogsleded they could have dogsleded	I could have been dogsleding you could have been dogsleding he could have been dogsleding we could have been dogsleding you could have been dogsleding they could have been dogsleding

Negation

Simple form	V-ing form
I couldn't dogsled you couldn't dogsled he couldn't dogsled we couldn't dogsled you couldn't dogsled they couldn't dogsled	I couldn't be dogsleding you couldn't be dogsleding he couldn't be dogsleding we couldn't be dogsleding you couldn't be dogsleding they couldn't be dogsleding
Perfect	V-ing perfect
I couldn't have dogsleded you couldn't have dogsleded he couldn't have dogsleded we couldn't have dogsleded you couldn't have dogsleded they couldn't have dogsleded	I couldn't have been dogsleding you couldn't have been dogsleding he couldn't have been dogsleding we couldn't have been dogsleding you couldn't have been dogsleding they couldn't have been dogsleding

Interrogative form

Simple form	V-ing form
could I dogsled? could you dogsled? could he dogsled? could we dogsled? could you dogsled? could they dogsled?	could I be dogsleding? could you be dogsleding? could he be dogsleding? could we be dogsleding? could you be dogsleding? could they be dogsleding?
Perfect	V-ing perfect
could I have dogsleded? could you have dogsleded? could he have dogsleded? could we have dogsleded? could you have dogsleded? could they have dogsleded?	could I have been dogsleding? could you have been dogsleding? could he have been dogsleding? could we have been dogsleding? could you have been dogsleding? could they have been dogsleding?

Interro-negative form

Simple form	V-ing form
couldn't I dogsled? couldn't you dogsled? couldn't he dogsled? couldn't we dogsled? couldn't you dogsled? couldn't they dogsled?	couldn't I be dogsleding? couldn't you be dogsleding? couldn't he be dogsleding? couldn't we be dogsleding? couldn't you be dogsleding? couldn't they be dogsleding?
Perfect	V-ing perfect
couldn't I have dogsleded? couldn't you have dogsleded? couldn't he have dogsleded? couldn't we have dogsleded? couldn't you have dogsleded? couldn't they have dogsleded?	couldn't I have been dogsleding? couldn't you have been dogsleding? couldn't he have been dogsleding? couldn't we have been dogsleding? couldn't you have been dogsleding? couldn't they have been dogsleding?