I could computerize you could computerize he could computerize we could computerize you could computerize they could computerize
V-ing form
I could be computerizing you could be computerizing he could be computerizing we could be computerizing you could be computerizing they could be computerizing
Perfect
I could have computerized you could have computerized he could have computerized we could have computerized you could have computerized they could have computerized
V-ing perfect
I could have been computerizing you could have been computerizing he could have been computerizing we could have been computerizing you could have been computerizing they could have been computerizing
Negation
Simple form
I couldn't computerize you couldn't computerize he couldn't computerize we couldn't computerize you couldn't computerize they couldn't computerize
V-ing form
I couldn't be computerizing you couldn't be computerizing he couldn't be computerizing we couldn't be computerizing you couldn't be computerizing they couldn't be computerizing
Perfect
I couldn't have computerized you couldn't have computerized he couldn't have computerized we couldn't have computerized you couldn't have computerized they couldn't have computerized
V-ing perfect
I couldn't have been computerizing you couldn't have been computerizing he couldn't have been computerizing we couldn't have been computerizing you couldn't have been computerizing they couldn't have been computerizing
Interrogative form
Simple form
could I computerize? could you computerize? could he computerize? could we computerize? could you computerize? could they computerize?
V-ing form
could I be computerizing? could you be computerizing? could he be computerizing? could we be computerizing? could you be computerizing? could they be computerizing?
Perfect
could I have computerized? could you have computerized? could he have computerized? could we have computerized? could you have computerized? could they have computerized?
V-ing perfect
could I have been computerizing? could you have been computerizing? could he have been computerizing? could we have been computerizing? could you have been computerizing? could they have been computerizing?
Interro-negative form
Simple form
couldn't I computerize? couldn't you computerize? couldn't he computerize? couldn't we computerize? couldn't you computerize? couldn't they computerize?
V-ing form
couldn't I be computerizing? couldn't you be computerizing? couldn't he be computerizing? couldn't we be computerizing? couldn't you be computerizing? couldn't they be computerizing?
Perfect
couldn't I have computerized? couldn't you have computerized? couldn't he have computerized? couldn't we have computerized? couldn't you have computerized? couldn't they have computerized?
V-ing perfect
couldn't I have been computerizing? couldn't you have been computerizing? couldn't he have been computerizing? couldn't we have been computerizing? couldn't you have been computerizing? couldn't they have been computerizing?