English verb conjugation
CAN ROTOTILL

Regular verb: rototill - rototilled - rototilled

Affirmation

Simple form	V-ing form
I can rototill you can rototill he can rototill we can rototill you can rototill they can rototill	I can be rototilling you can be rototilling he can be rototilling we can be rototilling you can be rototilling they can be rototilling
Perfect	V-ing perfect
I can have rototilled you can have rototilled he can have rototilled we can have rototilled you can have rototilled they can have rototilled	I can have been rototilling you can have been rototilling he can have been rototilling we can have been rototilling you can have been rototilling they can have been rototilling

Negation

Simple form	V-ing form
I can't rototill you can't rototill he can't rototill we can't rototill you can't rototill they can't rototill	I can't be rototilling you can't be rototilling he can't be rototilling we can't be rototilling you can't be rototilling they can't be rototilling
Perfect	V-ing perfect
I can't have rototilled you can't have rototilled he can't have rototilled we can't have rototilled you can't have rototilled they can't have rototilled	I can't have been rototilling you can't have been rototilling he can't have been rototilling we can't have been rototilling you can't have been rototilling they can't have been rototilling

Interrogative form

Simple form	V-ing form
can I rototill? can you rototill? can he rototill? can we rototill? can you rototill? can they rototill?	can I be rototilling? can you be rototilling? can he be rototilling? can we be rototilling? can you be rototilling? can they be rototilling?
Perfect	V-ing perfect
can I have rototilled? can you have rototilled? can he have rototilled? can we have rototilled? can you have rototilled? can they have rototilled?	can I have been rototilling? can you have been rototilling? can he have been rototilling? can we have been rototilling? can you have been rototilling? can they have been rototilling?

Interro-negative form

Simple form	V-ing form
can't I rototill? can't you rototill? can't he rototill? can't we rototill? can't you rototill? can't they rototill?	can't I be rototilling? can't you be rototilling? can't he be rototilling? can't we be rototilling? can't you be rototilling? can't they be rototilling?
Perfect	V-ing perfect
can't I have rototilled? can't you have rototilled? can't he have rototilled? can't we have rototilled? can't you have rototilled? can't they have rototilled?	can't I have been rototilling? can't you have been rototilling? can't he have been rototilling? can't we have been rototilling? can't you have been rototilling? can't they have been rototilling?