English verb conjugation
CAN ROUST

Regular verb: roust - rousted - rousted

Affirmation

Simple form	V-ing form
I can roust you can roust he can roust we can roust you can roust they can roust	I can be rousting you can be rousting he can be rousting we can be rousting you can be rousting they can be rousting
Perfect	V-ing perfect
I can have rousted you can have rousted he can have rousted we can have rousted you can have rousted they can have rousted	I can have been rousting you can have been rousting he can have been rousting we can have been rousting you can have been rousting they can have been rousting

Negation

Simple form	V-ing form
I cannot roust you cannot roust he cannot roust we cannot roust you cannot roust they cannot roust	I cannot be rousting you cannot be rousting he cannot be rousting we cannot be rousting you cannot be rousting they cannot be rousting
Perfect	V-ing perfect
I cannot have rousted you cannot have rousted he cannot have rousted we cannot have rousted you cannot have rousted they cannot have rousted	I cannot have been rousting you cannot have been rousting he cannot have been rousting we cannot have been rousting you cannot have been rousting they cannot have been rousting

Interrogative form

Simple form	V-ing form
can I roust? can you roust? can he roust? can we roust? can you roust? can they roust?	can I be rousting? can you be rousting? can he be rousting? can we be rousting? can you be rousting? can they be rousting?
Perfect	V-ing perfect
can I have rousted? can you have rousted? can he have rousted? can we have rousted? can you have rousted? can they have rousted?	can I have been rousting? can you have been rousting? can he have been rousting? can we have been rousting? can you have been rousting? can they have been rousting?

Interro-negative form

Simple form	V-ing form
can I not roust? can you not roust? can he not roust? can we not roust? can you not roust? can they not roust?	can I not be rousting? can you not be rousting? can he not be rousting? can we not be rousting? can you not be rousting? can they not be rousting?
Perfect	V-ing perfect
can I not have rousted? can you not have rousted? can he not have rousted? can we not have rousted? can you not have rousted? can they not have rousted?	can I not have been rousting? can you not have been rousting? can he not have been rousting? can we not have been rousting? can you not have been rousting? can they not have been rousting?