English verb conjugation
COULD ROUGHNECK

Regular verb: roughneck - roughnecked - roughnecked

Affirmation

Simple form	V-ing form
I could roughneck you could roughneck he could roughneck we could roughneck you could roughneck they could roughneck	I could be roughnecking you could be roughnecking he could be roughnecking we could be roughnecking you could be roughnecking they could be roughnecking
Perfect	V-ing perfect
I could have roughnecked you could have roughnecked he could have roughnecked we could have roughnecked you could have roughnecked they could have roughnecked	I could have been roughnecking you could have been roughnecking he could have been roughnecking we could have been roughnecking you could have been roughnecking they could have been roughnecking

Negation

Simple form	V-ing form
I couldn't roughneck you couldn't roughneck he couldn't roughneck we couldn't roughneck you couldn't roughneck they couldn't roughneck	I couldn't be roughnecking you couldn't be roughnecking he couldn't be roughnecking we couldn't be roughnecking you couldn't be roughnecking they couldn't be roughnecking
Perfect	V-ing perfect
I couldn't have roughnecked you couldn't have roughnecked he couldn't have roughnecked we couldn't have roughnecked you couldn't have roughnecked they couldn't have roughnecked	I couldn't have been roughnecking you couldn't have been roughnecking he couldn't have been roughnecking we couldn't have been roughnecking you couldn't have been roughnecking they couldn't have been roughnecking

Interrogative form

Simple form	V-ing form
could I roughneck? could you roughneck? could he roughneck? could we roughneck? could you roughneck? could they roughneck?	could I be roughnecking? could you be roughnecking? could he be roughnecking? could we be roughnecking? could you be roughnecking? could they be roughnecking?
Perfect	V-ing perfect
could I have roughnecked? could you have roughnecked? could he have roughnecked? could we have roughnecked? could you have roughnecked? could they have roughnecked?	could I have been roughnecking? could you have been roughnecking? could he have been roughnecking? could we have been roughnecking? could you have been roughnecking? could they have been roughnecking?

Interro-negative form

Simple form	V-ing form
couldn't I roughneck? couldn't you roughneck? couldn't he roughneck? couldn't we roughneck? couldn't you roughneck? couldn't they roughneck?	couldn't I be roughnecking? couldn't you be roughnecking? couldn't he be roughnecking? couldn't we be roughnecking? couldn't you be roughnecking? couldn't they be roughnecking?
Perfect	V-ing perfect
couldn't I have roughnecked? couldn't you have roughnecked? couldn't he have roughnecked? couldn't we have roughnecked? couldn't you have roughnecked? couldn't they have roughnecked?	couldn't I have been roughnecking? couldn't you have been roughnecking? couldn't he have been roughnecking? couldn't we have been roughnecking? couldn't you have been roughnecking? couldn't they have been roughnecking?