I can carburize you can carburize he can carburize we can carburize you can carburize they can carburize
V-ing form
I can be carburizing you can be carburizing he can be carburizing we can be carburizing you can be carburizing they can be carburizing
Perfect
I can have carburized you can have carburized he can have carburized we can have carburized you can have carburized they can have carburized
V-ing perfect
I can have been carburizing you can have been carburizing he can have been carburizing we can have been carburizing you can have been carburizing they can have been carburizing
Negation
Simple form
I can't carburize you can't carburize he can't carburize we can't carburize you can't carburize they can't carburize
V-ing form
I can't be carburizing you can't be carburizing he can't be carburizing we can't be carburizing you can't be carburizing they can't be carburizing
Perfect
I can't have carburized you can't have carburized he can't have carburized we can't have carburized you can't have carburized they can't have carburized
V-ing perfect
I can't have been carburizing you can't have been carburizing he can't have been carburizing we can't have been carburizing you can't have been carburizing they can't have been carburizing
Interrogative form
Simple form
can I carburize? can you carburize? can he carburize? can we carburize? can you carburize? can they carburize?
V-ing form
can I be carburizing? can you be carburizing? can he be carburizing? can we be carburizing? can you be carburizing? can they be carburizing?
Perfect
can I have carburized? can you have carburized? can he have carburized? can we have carburized? can you have carburized? can they have carburized?
V-ing perfect
can I have been carburizing? can you have been carburizing? can he have been carburizing? can we have been carburizing? can you have been carburizing? can they have been carburizing?
Interro-negative form
Simple form
can't I carburize? can't you carburize? can't he carburize? can't we carburize? can't you carburize? can't they carburize?
V-ing form
can't I be carburizing? can't you be carburizing? can't he be carburizing? can't we be carburizing? can't you be carburizing? can't they be carburizing?
Perfect
can't I have carburized? can't you have carburized? can't he have carburized? can't we have carburized? can't you have carburized? can't they have carburized?
V-ing perfect
can't I have been carburizing? can't you have been carburizing? can't he have been carburizing? can't we have been carburizing? can't you have been carburizing? can't they have been carburizing?