English verb conjugation
CAN PLOW

Regular verb: plow - plowed - plowed

Affirmation

Simple form	V-ing form
I can plow you can plow he can plow we can plow you can plow they can plow	I can be plowing you can be plowing he can be plowing we can be plowing you can be plowing they can be plowing
Perfect	V-ing perfect
I can have plowed you can have plowed he can have plowed we can have plowed you can have plowed they can have plowed	I can have been plowing you can have been plowing he can have been plowing we can have been plowing you can have been plowing they can have been plowing

Negation

Simple form	V-ing form
I can't plow you can't plow he can't plow we can't plow you can't plow they can't plow	I can't be plowing you can't be plowing he can't be plowing we can't be plowing you can't be plowing they can't be plowing
Perfect	V-ing perfect
I can't have plowed you can't have plowed he can't have plowed we can't have plowed you can't have plowed they can't have plowed	I can't have been plowing you can't have been plowing he can't have been plowing we can't have been plowing you can't have been plowing they can't have been plowing

Interrogative form

Simple form	V-ing form
can I plow? can you plow? can he plow? can we plow? can you plow? can they plow?	can I be plowing? can you be plowing? can he be plowing? can we be plowing? can you be plowing? can they be plowing?
Perfect	V-ing perfect
can I have plowed? can you have plowed? can he have plowed? can we have plowed? can you have plowed? can they have plowed?	can I have been plowing? can you have been plowing? can he have been plowing? can we have been plowing? can you have been plowing? can they have been plowing?

Interro-negative form

Simple form	V-ing form
can't I plow? can't you plow? can't he plow? can't we plow? can't you plow? can't they plow?	can't I be plowing? can't you be plowing? can't he be plowing? can't we be plowing? can't you be plowing? can't they be plowing?
Perfect	V-ing perfect
can't I have plowed? can't you have plowed? can't he have plowed? can't we have plowed? can't you have plowed? can't they have plowed?	can't I have been plowing? can't you have been plowing? can't he have been plowing? can't we have been plowing? can't you have been plowing? can't they have been plowing?