English verb conjugation
COULD DRONE

Regular verb: drone - droned - droned

Affirmation

Simple form	V-ing form
I could drone you could drone he could drone we could drone you could drone they could drone	I could be droning you could be droning he could be droning we could be droning you could be droning they could be droning
Perfect	V-ing perfect
I could have droned you could have droned he could have droned we could have droned you could have droned they could have droned	I could have been droning you could have been droning he could have been droning we could have been droning you could have been droning they could have been droning

Negation

Simple form	V-ing form
I couldn't drone you couldn't drone he couldn't drone we couldn't drone you couldn't drone they couldn't drone	I couldn't be droning you couldn't be droning he couldn't be droning we couldn't be droning you couldn't be droning they couldn't be droning
Perfect	V-ing perfect
I couldn't have droned you couldn't have droned he couldn't have droned we couldn't have droned you couldn't have droned they couldn't have droned	I couldn't have been droning you couldn't have been droning he couldn't have been droning we couldn't have been droning you couldn't have been droning they couldn't have been droning

Interrogative form

Simple form	V-ing form
could I drone? could you drone? could he drone? could we drone? could you drone? could they drone?	could I be droning? could you be droning? could he be droning? could we be droning? could you be droning? could they be droning?
Perfect	V-ing perfect
could I have droned? could you have droned? could he have droned? could we have droned? could you have droned? could they have droned?	could I have been droning? could you have been droning? could he have been droning? could we have been droning? could you have been droning? could they have been droning?

Interro-negative form

Simple form	V-ing form
couldn't I drone? couldn't you drone? couldn't he drone? couldn't we drone? couldn't you drone? couldn't they drone?	couldn't I be droning? couldn't you be droning? couldn't he be droning? couldn't we be droning? couldn't you be droning? couldn't they be droning?
Perfect	V-ing perfect
couldn't I have droned? couldn't you have droned? couldn't he have droned? couldn't we have droned? couldn't you have droned? couldn't they have droned?	couldn't I have been droning? couldn't you have been droning? couldn't he have been droning? couldn't we have been droning? couldn't you have been droning? couldn't they have been droning?