English verb conjugation
COULD SIDLE

Regular verb: sidle - sidled - sidled

Affirmation

Simple form	V-ing form
I could sidle you could sidle she could sidle we could sidle you could sidle they could sidle	I could be sidling you could be sidling she could be sidling we could be sidling you could be sidling they could be sidling
Perfect	V-ing perfect
I could have sidled you could have sidled she could have sidled we could have sidled you could have sidled they could have sidled	I could have been sidling you could have been sidling she could have been sidling we could have been sidling you could have been sidling they could have been sidling

Negation

Simple form	V-ing form
I couldn't sidle you couldn't sidle she couldn't sidle we couldn't sidle you couldn't sidle they couldn't sidle	I couldn't be sidling you couldn't be sidling she couldn't be sidling we couldn't be sidling you couldn't be sidling they couldn't be sidling
Perfect	V-ing perfect
I couldn't have sidled you couldn't have sidled she couldn't have sidled we couldn't have sidled you couldn't have sidled they couldn't have sidled	I couldn't have been sidling you couldn't have been sidling she couldn't have been sidling we couldn't have been sidling you couldn't have been sidling they couldn't have been sidling

Interrogative form

Simple form	V-ing form
could I sidle? could you sidle? could she sidle? could we sidle? could you sidle? could they sidle?	could I be sidling? could you be sidling? could she be sidling? could we be sidling? could you be sidling? could they be sidling?
Perfect	V-ing perfect
could I have sidled? could you have sidled? could she have sidled? could we have sidled? could you have sidled? could they have sidled?	could I have been sidling? could you have been sidling? could she have been sidling? could we have been sidling? could you have been sidling? could they have been sidling?

Interro-negative form

Simple form	V-ing form
couldn't I sidle? couldn't you sidle? couldn't she sidle? couldn't we sidle? couldn't you sidle? couldn't they sidle?	couldn't I be sidling? couldn't you be sidling? couldn't she be sidling? couldn't we be sidling? couldn't you be sidling? couldn't they be sidling?
Perfect	V-ing perfect
couldn't I have sidled? couldn't you have sidled? couldn't she have sidled? couldn't we have sidled? couldn't you have sidled? couldn't they have sidled?	couldn't I have been sidling? couldn't you have been sidling? couldn't she have been sidling? couldn't we have been sidling? couldn't you have been sidling? couldn't they have been sidling?