English verb conjugation
COULD EMPTY

Regular verb: empty - emptied - emptied

Affirmation

Simple form	V-ing form
I could empty you could empty she could empty we could empty you could empty they could empty	I could be emptying you could be emptying she could be emptying we could be emptying you could be emptying they could be emptying
Perfect	V-ing perfect
I could have emptied you could have emptied she could have emptied we could have emptied you could have emptied they could have emptied	I could have been emptying you could have been emptying she could have been emptying we could have been emptying you could have been emptying they could have been emptying

Negation

Simple form	V-ing form
I couldn't empty you couldn't empty she couldn't empty we couldn't empty you couldn't empty they couldn't empty	I couldn't be emptying you couldn't be emptying she couldn't be emptying we couldn't be emptying you couldn't be emptying they couldn't be emptying
Perfect	V-ing perfect
I couldn't have emptied you couldn't have emptied she couldn't have emptied we couldn't have emptied you couldn't have emptied they couldn't have emptied	I couldn't have been emptying you couldn't have been emptying she couldn't have been emptying we couldn't have been emptying you couldn't have been emptying they couldn't have been emptying

Interrogative form

Simple form	V-ing form
could I empty? could you empty? could she empty? could we empty? could you empty? could they empty?	could I be emptying? could you be emptying? could she be emptying? could we be emptying? could you be emptying? could they be emptying?
Perfect	V-ing perfect
could I have emptied? could you have emptied? could she have emptied? could we have emptied? could you have emptied? could they have emptied?	could I have been emptying? could you have been emptying? could she have been emptying? could we have been emptying? could you have been emptying? could they have been emptying?

Interro-negative form

Simple form	V-ing form
couldn't I empty? couldn't you empty? couldn't she empty? couldn't we empty? couldn't you empty? couldn't they empty?	couldn't I be emptying? couldn't you be emptying? couldn't she be emptying? couldn't we be emptying? couldn't you be emptying? couldn't they be emptying?
Perfect	V-ing perfect
couldn't I have emptied? couldn't you have emptied? couldn't she have emptied? couldn't we have emptied? couldn't you have emptied? couldn't they have emptied?	couldn't I have been emptying? couldn't you have been emptying? couldn't she have been emptying? couldn't we have been emptying? couldn't you have been emptying? couldn't they have been emptying?