English verb conjugation
CAN ROUGHNECK

Regular verb: roughneck - roughnecked - roughnecked

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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