English verb conjugation
COULD DOGSLED

Regular verb: dogsled - dogsleded - dogsleded

Affirmation

Simple form	V-ing form
I could dogsled you could dogsled she could dogsled we could dogsled you could dogsled they could dogsled	I could be dogsleding you could be dogsleding she 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 she 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 she 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 she 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 she 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 she 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 she 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 she dogsled? could we dogsled? could you dogsled? could they dogsled?	could I be dogsleding? could you be dogsleding? could she 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 she 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 she 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 she 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 she 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 she 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 she have been dogsleding? couldn't we have been dogsleding? couldn't you have been dogsleding? couldn't they have been dogsleding?