English verb conjugation
COULD GLIDE

Regular verb: glide - glided - glided

Affirmation

Simple form	V-ing form
I could glide you could glide he could glide we could glide you could glide they could glide	I could be gliding you could be gliding he could be gliding we could be gliding you could be gliding they could be gliding
Perfect	V-ing perfect
I could have glided you could have glided he could have glided we could have glided you could have glided they could have glided	I could have been gliding you could have been gliding he could have been gliding we could have been gliding you could have been gliding they could have been gliding

Negation

Simple form	V-ing form
I could not glide you could not glide he could not glide we could not glide you could not glide they could not glide	I could not be gliding you could not be gliding he could not be gliding we could not be gliding you could not be gliding they could not be gliding
Perfect	V-ing perfect
I could not have glided you could not have glided he could not have glided we could not have glided you could not have glided they could not have glided	I could not have been gliding you could not have been gliding he could not have been gliding we could not have been gliding you could not have been gliding they could not have been gliding

Interrogative form

Simple form	V-ing form
could I glide? could you glide? could he glide? could we glide? could you glide? could they glide?	could I be gliding? could you be gliding? could he be gliding? could we be gliding? could you be gliding? could they be gliding?
Perfect	V-ing perfect
could I have glided? could you have glided? could he have glided? could we have glided? could you have glided? could they have glided?	could I have been gliding? could you have been gliding? could he have been gliding? could we have been gliding? could you have been gliding? could they have been gliding?

Interro-negative form

Simple form	V-ing form
could I not glide? could you not glide? could he not glide? could we not glide? could you not glide? could they not glide?	could I not be gliding? could you not be gliding? could he not be gliding? could we not be gliding? could you not be gliding? could they not be gliding?
Perfect	V-ing perfect
could I not have glided? could you not have glided? could he not have glided? could we not have glided? could you not have glided? could they not have glided?	could I not have been gliding? could you not have been gliding? could he not have been gliding? could we not have been gliding? could you not have been gliding? could they not have been gliding?