English verb conjugation
COULD ITALICIZE

Regular verb: italicize - italicized - italicized

Affirmation

Simple form	V-ing form
I could italicize you could italicize he could italicize we could italicize you could italicize they could italicize	I could be italicizing you could be italicizing he could be italicizing we could be italicizing you could be italicizing they could be italicizing
Perfect	V-ing perfect
I could have italicized you could have italicized he could have italicized we could have italicized you could have italicized they could have italicized	I could have been italicizing you could have been italicizing he could have been italicizing we could have been italicizing you could have been italicizing they could have been italicizing

Negation

Simple form	V-ing form
I couldn't italicize you couldn't italicize he couldn't italicize we couldn't italicize you couldn't italicize they couldn't italicize	I couldn't be italicizing you couldn't be italicizing he couldn't be italicizing we couldn't be italicizing you couldn't be italicizing they couldn't be italicizing
Perfect	V-ing perfect
I couldn't have italicized you couldn't have italicized he couldn't have italicized we couldn't have italicized you couldn't have italicized they couldn't have italicized	I couldn't have been italicizing you couldn't have been italicizing he couldn't have been italicizing we couldn't have been italicizing you couldn't have been italicizing they couldn't have been italicizing

Interrogative form

Simple form	V-ing form
could I italicize? could you italicize? could he italicize? could we italicize? could you italicize? could they italicize?	could I be italicizing? could you be italicizing? could he be italicizing? could we be italicizing? could you be italicizing? could they be italicizing?
Perfect	V-ing perfect
could I have italicized? could you have italicized? could he have italicized? could we have italicized? could you have italicized? could they have italicized?	could I have been italicizing? could you have been italicizing? could he have been italicizing? could we have been italicizing? could you have been italicizing? could they have been italicizing?

Interro-negative form

Simple form	V-ing form
couldn't I italicize? couldn't you italicize? couldn't he italicize? couldn't we italicize? couldn't you italicize? couldn't they italicize?	couldn't I be italicizing? couldn't you be italicizing? couldn't he be italicizing? couldn't we be italicizing? couldn't you be italicizing? couldn't they be italicizing?
Perfect	V-ing perfect
couldn't I have italicized? couldn't you have italicized? couldn't he have italicized? couldn't we have italicized? couldn't you have italicized? couldn't they have italicized?	couldn't I have been italicizing? couldn't you have been italicizing? couldn't he have been italicizing? couldn't we have been italicizing? couldn't you have been italicizing? couldn't they have been italicizing?