English verb conjugation
COULD DEPLANE

Regular verb: deplane - deplaned - deplaned

Affirmation

Simple form	V-ing form
I could deplane you could deplane he could deplane we could deplane you could deplane they could deplane	I could be deplaning you could be deplaning he could be deplaning we could be deplaning you could be deplaning they could be deplaning
Perfect	V-ing perfect
I could have deplaned you could have deplaned he could have deplaned we could have deplaned you could have deplaned they could have deplaned	I could have been deplaning you could have been deplaning he could have been deplaning we could have been deplaning you could have been deplaning they could have been deplaning

Negation

Simple form	V-ing form
I couldn't deplane you couldn't deplane he couldn't deplane we couldn't deplane you couldn't deplane they couldn't deplane	I couldn't be deplaning you couldn't be deplaning he couldn't be deplaning we couldn't be deplaning you couldn't be deplaning they couldn't be deplaning
Perfect	V-ing perfect
I couldn't have deplaned you couldn't have deplaned he couldn't have deplaned we couldn't have deplaned you couldn't have deplaned they couldn't have deplaned	I couldn't have been deplaning you couldn't have been deplaning he couldn't have been deplaning we couldn't have been deplaning you couldn't have been deplaning they couldn't have been deplaning

Interrogative form

Simple form	V-ing form
could I deplane? could you deplane? could he deplane? could we deplane? could you deplane? could they deplane?	could I be deplaning? could you be deplaning? could he be deplaning? could we be deplaning? could you be deplaning? could they be deplaning?
Perfect	V-ing perfect
could I have deplaned? could you have deplaned? could he have deplaned? could we have deplaned? could you have deplaned? could they have deplaned?	could I have been deplaning? could you have been deplaning? could he have been deplaning? could we have been deplaning? could you have been deplaning? could they have been deplaning?

Interro-negative form

Simple form	V-ing form
couldn't I deplane? couldn't you deplane? couldn't he deplane? couldn't we deplane? couldn't you deplane? couldn't they deplane?	couldn't I be deplaning? couldn't you be deplaning? couldn't he be deplaning? couldn't we be deplaning? couldn't you be deplaning? couldn't they be deplaning?
Perfect	V-ing perfect
couldn't I have deplaned? couldn't you have deplaned? couldn't he have deplaned? couldn't we have deplaned? couldn't you have deplaned? couldn't they have deplaned?	couldn't I have been deplaning? couldn't you have been deplaning? couldn't he have been deplaning? couldn't we have been deplaning? couldn't you have been deplaning? couldn't they have been deplaning?