English verb conjugation
CAN RUST

Regular verb: rust - rusted - rusted

Affirmation

Simple form	V-ing form
I can rust you can rust he can rust we can rust you can rust they can rust	I can be rusting you can be rusting he can be rusting we can be rusting you can be rusting they can be rusting
Perfect	V-ing perfect
I can have rusted you can have rusted he can have rusted we can have rusted you can have rusted they can have rusted	I can have been rusting you can have been rusting he can have been rusting we can have been rusting you can have been rusting they can have been rusting

Negation

Simple form	V-ing form
I cannot rust you cannot rust he cannot rust we cannot rust you cannot rust they cannot rust	I cannot be rusting you cannot be rusting he cannot be rusting we cannot be rusting you cannot be rusting they cannot be rusting
Perfect	V-ing perfect
I cannot have rusted you cannot have rusted he cannot have rusted we cannot have rusted you cannot have rusted they cannot have rusted	I cannot have been rusting you cannot have been rusting he cannot have been rusting we cannot have been rusting you cannot have been rusting they cannot have been rusting

Interrogative form

Simple form	V-ing form
can I rust? can you rust? can he rust? can we rust? can you rust? can they rust?	can I be rusting? can you be rusting? can he be rusting? can we be rusting? can you be rusting? can they be rusting?
Perfect	V-ing perfect
can I have rusted? can you have rusted? can he have rusted? can we have rusted? can you have rusted? can they have rusted?	can I have been rusting? can you have been rusting? can he have been rusting? can we have been rusting? can you have been rusting? can they have been rusting?

Interro-negative form

Simple form	V-ing form
can I not rust? can you not rust? can he not rust? can we not rust? can you not rust? can they not rust?	can I not be rusting? can you not be rusting? can he not be rusting? can we not be rusting? can you not be rusting? can they not be rusting?
Perfect	V-ing perfect
can I not have rusted? can you not have rusted? can he not have rusted? can we not have rusted? can you not have rusted? can they not have rusted?	can I not have been rusting? can you not have been rusting? can he not have been rusting? can we not have been rusting? can you not have been rusting? can they not have been rusting?