English verb conjugation
CAN CONTAMINATE

Regular verb: contaminate - contaminated - contaminated

Affirmation

Simple form	V-ing form
I can contaminate you can contaminate he can contaminate we can contaminate you can contaminate they can contaminate	I can be contaminating you can be contaminating he can be contaminating we can be contaminating you can be contaminating they can be contaminating
Perfect	V-ing perfect
I can have contaminated you can have contaminated he can have contaminated we can have contaminated you can have contaminated they can have contaminated	I can have been contaminating you can have been contaminating he can have been contaminating we can have been contaminating you can have been contaminating they can have been contaminating

Negation

Simple form	V-ing form
I cannot contaminate you cannot contaminate he cannot contaminate we cannot contaminate you cannot contaminate they cannot contaminate	I cannot be contaminating you cannot be contaminating he cannot be contaminating we cannot be contaminating you cannot be contaminating they cannot be contaminating
Perfect	V-ing perfect
I cannot have contaminated you cannot have contaminated he cannot have contaminated we cannot have contaminated you cannot have contaminated they cannot have contaminated	I cannot have been contaminating you cannot have been contaminating he cannot have been contaminating we cannot have been contaminating you cannot have been contaminating they cannot have been contaminating

Interrogative form

Simple form	V-ing form
can I contaminate? can you contaminate? can he contaminate? can we contaminate? can you contaminate? can they contaminate?	can I be contaminating? can you be contaminating? can he be contaminating? can we be contaminating? can you be contaminating? can they be contaminating?
Perfect	V-ing perfect
can I have contaminated? can you have contaminated? can he have contaminated? can we have contaminated? can you have contaminated? can they have contaminated?	can I have been contaminating? can you have been contaminating? can he have been contaminating? can we have been contaminating? can you have been contaminating? can they have been contaminating?

Interro-negative form

Simple form	V-ing form
can I not contaminate? can you not contaminate? can he not contaminate? can we not contaminate? can you not contaminate? can they not contaminate?	can I not be contaminating? can you not be contaminating? can he not be contaminating? can we not be contaminating? can you not be contaminating? can they not be contaminating?
Perfect	V-ing perfect
can I not have contaminated? can you not have contaminated? can he not have contaminated? can we not have contaminated? can you not have contaminated? can they not have contaminated?	can I not have been contaminating? can you not have been contaminating? can he not have been contaminating? can we not have been contaminating? can you not have been contaminating? can they not have been contaminating?