English verb conjugation
COULD SHORTWAVE

Regular verb: shortwave - shortwaved - shortwaved

Affirmation

Simple form	V-ing form
I could shortwave you could shortwave she could shortwave we could shortwave you could shortwave they could shortwave	I could be shortwaving you could be shortwaving she could be shortwaving we could be shortwaving you could be shortwaving they could be shortwaving
Perfect	V-ing perfect
I could have shortwaved you could have shortwaved she could have shortwaved we could have shortwaved you could have shortwaved they could have shortwaved	I could have been shortwaving you could have been shortwaving she could have been shortwaving we could have been shortwaving you could have been shortwaving they could have been shortwaving

Negation

Simple form	V-ing form
I couldn't shortwave you couldn't shortwave she couldn't shortwave we couldn't shortwave you couldn't shortwave they couldn't shortwave	I couldn't be shortwaving you couldn't be shortwaving she couldn't be shortwaving we couldn't be shortwaving you couldn't be shortwaving they couldn't be shortwaving
Perfect	V-ing perfect
I couldn't have shortwaved you couldn't have shortwaved she couldn't have shortwaved we couldn't have shortwaved you couldn't have shortwaved they couldn't have shortwaved	I couldn't have been shortwaving you couldn't have been shortwaving she couldn't have been shortwaving we couldn't have been shortwaving you couldn't have been shortwaving they couldn't have been shortwaving

Interrogative form

Simple form	V-ing form
could I shortwave? could you shortwave? could she shortwave? could we shortwave? could you shortwave? could they shortwave?	could I be shortwaving? could you be shortwaving? could she be shortwaving? could we be shortwaving? could you be shortwaving? could they be shortwaving?
Perfect	V-ing perfect
could I have shortwaved? could you have shortwaved? could she have shortwaved? could we have shortwaved? could you have shortwaved? could they have shortwaved?	could I have been shortwaving? could you have been shortwaving? could she have been shortwaving? could we have been shortwaving? could you have been shortwaving? could they have been shortwaving?

Interro-negative form

Simple form	V-ing form
couldn't I shortwave? couldn't you shortwave? couldn't she shortwave? couldn't we shortwave? couldn't you shortwave? couldn't they shortwave?	couldn't I be shortwaving? couldn't you be shortwaving? couldn't she be shortwaving? couldn't we be shortwaving? couldn't you be shortwaving? couldn't they be shortwaving?
Perfect	V-ing perfect
couldn't I have shortwaved? couldn't you have shortwaved? couldn't she have shortwaved? couldn't we have shortwaved? couldn't you have shortwaved? couldn't they have shortwaved?	couldn't I have been shortwaving? couldn't you have been shortwaving? couldn't she have been shortwaving? couldn't we have been shortwaving? couldn't you have been shortwaving? couldn't they have been shortwaving?