English verb conjugation
COULD HELENIZE

Regular verb: helenize - helenized - helenized

Affirmation

Simple form	V-ing form
I could helenize you could helenize he could helenize we could helenize you could helenize they could helenize	I could be helenizing you could be helenizing he could be helenizing we could be helenizing you could be helenizing they could be helenizing
Perfect	V-ing perfect
I could have helenized you could have helenized he could have helenized we could have helenized you could have helenized they could have helenized	I could have been helenizing you could have been helenizing he could have been helenizing we could have been helenizing you could have been helenizing they could have been helenizing

Negation

Simple form	V-ing form
I couldn't helenize you couldn't helenize he couldn't helenize we couldn't helenize you couldn't helenize they couldn't helenize	I couldn't be helenizing you couldn't be helenizing he couldn't be helenizing we couldn't be helenizing you couldn't be helenizing they couldn't be helenizing
Perfect	V-ing perfect
I couldn't have helenized you couldn't have helenized he couldn't have helenized we couldn't have helenized you couldn't have helenized they couldn't have helenized	I couldn't have been helenizing you couldn't have been helenizing he couldn't have been helenizing we couldn't have been helenizing you couldn't have been helenizing they couldn't have been helenizing

Interrogative form

Simple form	V-ing form
could I helenize? could you helenize? could he helenize? could we helenize? could you helenize? could they helenize?	could I be helenizing? could you be helenizing? could he be helenizing? could we be helenizing? could you be helenizing? could they be helenizing?
Perfect	V-ing perfect
could I have helenized? could you have helenized? could he have helenized? could we have helenized? could you have helenized? could they have helenized?	could I have been helenizing? could you have been helenizing? could he have been helenizing? could we have been helenizing? could you have been helenizing? could they have been helenizing?

Interro-negative form

Simple form	V-ing form
couldn't I helenize? couldn't you helenize? couldn't he helenize? couldn't we helenize? couldn't you helenize? couldn't they helenize?	couldn't I be helenizing? couldn't you be helenizing? couldn't he be helenizing? couldn't we be helenizing? couldn't you be helenizing? couldn't they be helenizing?
Perfect	V-ing perfect
couldn't I have helenized? couldn't you have helenized? couldn't he have helenized? couldn't we have helenized? couldn't you have helenized? couldn't they have helenized?	couldn't I have been helenizing? couldn't you have been helenizing? couldn't he have been helenizing? couldn't we have been helenizing? couldn't you have been helenizing? couldn't they have been helenizing?