I could computerize you could computerize she could computerize we could computerize you could computerize they could computerize
V-ing form
I could be computerizing you could be computerizing she could be computerizing we could be computerizing you could be computerizing they could be computerizing
Perfect
I could have computerized you could have computerized she 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 she 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 she 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 she 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 she 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 she 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 she computerize? could we computerize? could you computerize? could they computerize?
V-ing form
could I be computerizing? could you be computerizing? could she be computerizing? could we be computerizing? could you be computerizing? could they be computerizing?
Perfect
could I have computerized? could you have computerized? could she 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 she 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 she 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 she 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 she 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 she have been computerizing? couldn't we have been computerizing? couldn't you have been computerizing? couldn't they have been computerizing?