English verb conjugation
COULD BULK

Regular verb: bulk - bulked - bulked

Affirmation

Simple form	V-ing form
I could bulk you could bulk she could bulk we could bulk you could bulk they could bulk	I could be bulking you could be bulking she could be bulking we could be bulking you could be bulking they could be bulking
Perfect	V-ing perfect
I could have bulked you could have bulked she could have bulked we could have bulked you could have bulked they could have bulked	I could have been bulking you could have been bulking she could have been bulking we could have been bulking you could have been bulking they could have been bulking

Negation

Simple form	V-ing form
I couldn't bulk you couldn't bulk she couldn't bulk we couldn't bulk you couldn't bulk they couldn't bulk	I couldn't be bulking you couldn't be bulking she couldn't be bulking we couldn't be bulking you couldn't be bulking they couldn't be bulking
Perfect	V-ing perfect
I couldn't have bulked you couldn't have bulked she couldn't have bulked we couldn't have bulked you couldn't have bulked they couldn't have bulked	I couldn't have been bulking you couldn't have been bulking she couldn't have been bulking we couldn't have been bulking you couldn't have been bulking they couldn't have been bulking

Interrogative form

Simple form	V-ing form
could I bulk? could you bulk? could she bulk? could we bulk? could you bulk? could they bulk?	could I be bulking? could you be bulking? could she be bulking? could we be bulking? could you be bulking? could they be bulking?
Perfect	V-ing perfect
could I have bulked? could you have bulked? could she have bulked? could we have bulked? could you have bulked? could they have bulked?	could I have been bulking? could you have been bulking? could she have been bulking? could we have been bulking? could you have been bulking? could they have been bulking?

Interro-negative form

Simple form	V-ing form
couldn't I bulk? couldn't you bulk? couldn't she bulk? couldn't we bulk? couldn't you bulk? couldn't they bulk?	couldn't I be bulking? couldn't you be bulking? couldn't she be bulking? couldn't we be bulking? couldn't you be bulking? couldn't they be bulking?
Perfect	V-ing perfect
couldn't I have bulked? couldn't you have bulked? couldn't she have bulked? couldn't we have bulked? couldn't you have bulked? couldn't they have bulked?	couldn't I have been bulking? couldn't you have been bulking? couldn't she have been bulking? couldn't we have been bulking? couldn't you have been bulking? couldn't they have been bulking?