English verb conjugation
CAN SULFURIZE

Regular verb: sulfurize - sulfurized - sulfurized

Affirmation

Simple form	V-ing form
I can sulfurize you can sulfurize he can sulfurize we can sulfurize you can sulfurize they can sulfurize	I can be sulfurizing you can be sulfurizing he can be sulfurizing we can be sulfurizing you can be sulfurizing they can be sulfurizing
Perfect	V-ing perfect
I can have sulfurized you can have sulfurized he can have sulfurized we can have sulfurized you can have sulfurized they can have sulfurized	I can have been sulfurizing you can have been sulfurizing he can have been sulfurizing we can have been sulfurizing you can have been sulfurizing they can have been sulfurizing

Negation

Simple form	V-ing form
I cannot sulfurize you cannot sulfurize he cannot sulfurize we cannot sulfurize you cannot sulfurize they cannot sulfurize	I cannot be sulfurizing you cannot be sulfurizing he cannot be sulfurizing we cannot be sulfurizing you cannot be sulfurizing they cannot be sulfurizing
Perfect	V-ing perfect
I cannot have sulfurized you cannot have sulfurized he cannot have sulfurized we cannot have sulfurized you cannot have sulfurized they cannot have sulfurized	I cannot have been sulfurizing you cannot have been sulfurizing he cannot have been sulfurizing we cannot have been sulfurizing you cannot have been sulfurizing they cannot have been sulfurizing

Interrogative form

Simple form	V-ing form
can I sulfurize? can you sulfurize? can he sulfurize? can we sulfurize? can you sulfurize? can they sulfurize?	can I be sulfurizing? can you be sulfurizing? can he be sulfurizing? can we be sulfurizing? can you be sulfurizing? can they be sulfurizing?
Perfect	V-ing perfect
can I have sulfurized? can you have sulfurized? can he have sulfurized? can we have sulfurized? can you have sulfurized? can they have sulfurized?	can I have been sulfurizing? can you have been sulfurizing? can he have been sulfurizing? can we have been sulfurizing? can you have been sulfurizing? can they have been sulfurizing?

Interro-negative form

Simple form	V-ing form
can I not sulfurize? can you not sulfurize? can he not sulfurize? can we not sulfurize? can you not sulfurize? can they not sulfurize?	can I not be sulfurizing? can you not be sulfurizing? can he not be sulfurizing? can we not be sulfurizing? can you not be sulfurizing? can they not be sulfurizing?
Perfect	V-ing perfect
can I not have sulfurized? can you not have sulfurized? can he not have sulfurized? can we not have sulfurized? can you not have sulfurized? can they not have sulfurized?	can I not have been sulfurizing? can you not have been sulfurizing? can he not have been sulfurizing? can we not have been sulfurizing? can you not have been sulfurizing? can they not have been sulfurizing?