English verb conjugation
CAN PLOUGH

Regular verb: plough - ploughed - ploughed

Affirmation

Simple form	V-ing form
I can plough you can plough he can plough we can plough you can plough they can plough	I can be ploughing you can be ploughing he can be ploughing we can be ploughing you can be ploughing they can be ploughing
Perfect	V-ing perfect
I can have ploughed you can have ploughed he can have ploughed we can have ploughed you can have ploughed they can have ploughed	I can have been ploughing you can have been ploughing he can have been ploughing we can have been ploughing you can have been ploughing they can have been ploughing

Negation

Simple form	V-ing form
I cannot plough you cannot plough he cannot plough we cannot plough you cannot plough they cannot plough	I cannot be ploughing you cannot be ploughing he cannot be ploughing we cannot be ploughing you cannot be ploughing they cannot be ploughing
Perfect	V-ing perfect
I cannot have ploughed you cannot have ploughed he cannot have ploughed we cannot have ploughed you cannot have ploughed they cannot have ploughed	I cannot have been ploughing you cannot have been ploughing he cannot have been ploughing we cannot have been ploughing you cannot have been ploughing they cannot have been ploughing

Interrogative form

Simple form	V-ing form
can I plough? can you plough? can he plough? can we plough? can you plough? can they plough?	can I be ploughing? can you be ploughing? can he be ploughing? can we be ploughing? can you be ploughing? can they be ploughing?
Perfect	V-ing perfect
can I have ploughed? can you have ploughed? can he have ploughed? can we have ploughed? can you have ploughed? can they have ploughed?	can I have been ploughing? can you have been ploughing? can he have been ploughing? can we have been ploughing? can you have been ploughing? can they have been ploughing?

Interro-negative form

Simple form	V-ing form
can I not plough? can you not plough? can he not plough? can we not plough? can you not plough? can they not plough?	can I not be ploughing? can you not be ploughing? can he not be ploughing? can we not be ploughing? can you not be ploughing? can they not be ploughing?
Perfect	V-ing perfect
can I not have ploughed? can you not have ploughed? can he not have ploughed? can we not have ploughed? can you not have ploughed? can they not have ploughed?	can I not have been ploughing? can you not have been ploughing? can he not have been ploughing? can we not have been ploughing? can you not have been ploughing? can they not have been ploughing?