English verb conjugation
COULD MECHANIZE

Regular verb: mechanize - mechanized - mechanized

Affirmation

Simple form	V-ing form
I could mechanize you could mechanize he could mechanize we could mechanize you could mechanize they could mechanize	I could be mechanizing you could be mechanizing he could be mechanizing we could be mechanizing you could be mechanizing they could be mechanizing
Perfect	V-ing perfect
I could have mechanized you could have mechanized he could have mechanized we could have mechanized you could have mechanized they could have mechanized	I could have been mechanizing you could have been mechanizing he could have been mechanizing we could have been mechanizing you could have been mechanizing they could have been mechanizing

Negation

Simple form	V-ing form
I couldn't mechanize you couldn't mechanize he couldn't mechanize we couldn't mechanize you couldn't mechanize they couldn't mechanize	I couldn't be mechanizing you couldn't be mechanizing he couldn't be mechanizing we couldn't be mechanizing you couldn't be mechanizing they couldn't be mechanizing
Perfect	V-ing perfect
I couldn't have mechanized you couldn't have mechanized he couldn't have mechanized we couldn't have mechanized you couldn't have mechanized they couldn't have mechanized	I couldn't have been mechanizing you couldn't have been mechanizing he couldn't have been mechanizing we couldn't have been mechanizing you couldn't have been mechanizing they couldn't have been mechanizing

Interrogative form

Simple form	V-ing form
could I mechanize? could you mechanize? could he mechanize? could we mechanize? could you mechanize? could they mechanize?	could I be mechanizing? could you be mechanizing? could he be mechanizing? could we be mechanizing? could you be mechanizing? could they be mechanizing?
Perfect	V-ing perfect
could I have mechanized? could you have mechanized? could he have mechanized? could we have mechanized? could you have mechanized? could they have mechanized?	could I have been mechanizing? could you have been mechanizing? could he have been mechanizing? could we have been mechanizing? could you have been mechanizing? could they have been mechanizing?

Interro-negative form

Simple form	V-ing form
couldn't I mechanize? couldn't you mechanize? couldn't he mechanize? couldn't we mechanize? couldn't you mechanize? couldn't they mechanize?	couldn't I be mechanizing? couldn't you be mechanizing? couldn't he be mechanizing? couldn't we be mechanizing? couldn't you be mechanizing? couldn't they be mechanizing?
Perfect	V-ing perfect
couldn't I have mechanized? couldn't you have mechanized? couldn't he have mechanized? couldn't we have mechanized? couldn't you have mechanized? couldn't they have mechanized?	couldn't I have been mechanizing? couldn't you have been mechanizing? couldn't he have been mechanizing? couldn't we have been mechanizing? couldn't you have been mechanizing? couldn't they have been mechanizing?