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 could not roughneck you could not roughneck he could not roughneck we could not roughneck you could not roughneck they could not roughneck	I could not be roughnecking you could not be roughnecking he could not be roughnecking we could not be roughnecking you could not be roughnecking they could not be roughnecking
Perfect	V-ing perfect
I could not have roughnecked you could not have roughnecked he could not have roughnecked we could not have roughnecked you could not have roughnecked they could not have roughnecked	I could not have been roughnecking you could not have been roughnecking he could not have been roughnecking we could not have been roughnecking you could not have been roughnecking they could not 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
could I not roughneck? could you not roughneck? could he not roughneck? could we not roughneck? could you not roughneck? could they not roughneck?	could I not be roughnecking? could you not be roughnecking? could he not be roughnecking? could we not be roughnecking? could you not be roughnecking? could they not be roughnecking?
Perfect	V-ing perfect
could I not have roughnecked? could you not have roughnecked? could he not have roughnecked? could we not have roughnecked? could you not have roughnecked? could they not have roughnecked?	could I not have been roughnecking? could you not have been roughnecking? could he not have been roughnecking? could we not have been roughnecking? could you not have been roughnecking? could they not have been roughnecking?