English verb conjugation
COULD LOP

Regular verb: lop - lopped - lopped

Affirmation

Simple form	V-ing form
I could lop you could lop he could lop we could lop you could lop they could lop	I could be lopping you could be lopping he could be lopping we could be lopping you could be lopping they could be lopping
Perfect	V-ing perfect
I could have lopped you could have lopped he could have lopped we could have lopped you could have lopped they could have lopped	I could have been lopping you could have been lopping he could have been lopping we could have been lopping you could have been lopping they could have been lopping

Negation

Simple form	V-ing form
I couldn't lop you couldn't lop he couldn't lop we couldn't lop you couldn't lop they couldn't lop	I couldn't be lopping you couldn't be lopping he couldn't be lopping we couldn't be lopping you couldn't be lopping they couldn't be lopping
Perfect	V-ing perfect
I couldn't have lopped you couldn't have lopped he couldn't have lopped we couldn't have lopped you couldn't have lopped they couldn't have lopped	I couldn't have been lopping you couldn't have been lopping he couldn't have been lopping we couldn't have been lopping you couldn't have been lopping they couldn't have been lopping

Interrogative form

Simple form	V-ing form
could I lop? could you lop? could he lop? could we lop? could you lop? could they lop?	could I be lopping? could you be lopping? could he be lopping? could we be lopping? could you be lopping? could they be lopping?
Perfect	V-ing perfect
could I have lopped? could you have lopped? could he have lopped? could we have lopped? could you have lopped? could they have lopped?	could I have been lopping? could you have been lopping? could he have been lopping? could we have been lopping? could you have been lopping? could they have been lopping?

Interro-negative form

Simple form	V-ing form
couldn't I lop? couldn't you lop? couldn't he lop? couldn't we lop? couldn't you lop? couldn't they lop?	couldn't I be lopping? couldn't you be lopping? couldn't he be lopping? couldn't we be lopping? couldn't you be lopping? couldn't they be lopping?
Perfect	V-ing perfect
couldn't I have lopped? couldn't you have lopped? couldn't he have lopped? couldn't we have lopped? couldn't you have lopped? couldn't they have lopped?	couldn't I have been lopping? couldn't you have been lopping? couldn't he have been lopping? couldn't we have been lopping? couldn't you have been lopping? couldn't they have been lopping?