English verb conjugation
COULD NATIONALIZE

Regular verb: nationalize - nationalized - nationalized

Affirmation

Simple form	V-ing form
I could nationalize you could nationalize he could nationalize we could nationalize you could nationalize they could nationalize	I could be nationalizing you could be nationalizing he could be nationalizing we could be nationalizing you could be nationalizing they could be nationalizing
Perfect	V-ing perfect
I could have nationalized you could have nationalized he could have nationalized we could have nationalized you could have nationalized they could have nationalized	I could have been nationalizing you could have been nationalizing he could have been nationalizing we could have been nationalizing you could have been nationalizing they could have been nationalizing

Negation

Simple form	V-ing form
I couldn't nationalize you couldn't nationalize he couldn't nationalize we couldn't nationalize you couldn't nationalize they couldn't nationalize	I couldn't be nationalizing you couldn't be nationalizing he couldn't be nationalizing we couldn't be nationalizing you couldn't be nationalizing they couldn't be nationalizing
Perfect	V-ing perfect
I couldn't have nationalized you couldn't have nationalized he couldn't have nationalized we couldn't have nationalized you couldn't have nationalized they couldn't have nationalized	I couldn't have been nationalizing you couldn't have been nationalizing he couldn't have been nationalizing we couldn't have been nationalizing you couldn't have been nationalizing they couldn't have been nationalizing

Interrogative form

Simple form	V-ing form
could I nationalize? could you nationalize? could he nationalize? could we nationalize? could you nationalize? could they nationalize?	could I be nationalizing? could you be nationalizing? could he be nationalizing? could we be nationalizing? could you be nationalizing? could they be nationalizing?
Perfect	V-ing perfect
could I have nationalized? could you have nationalized? could he have nationalized? could we have nationalized? could you have nationalized? could they have nationalized?	could I have been nationalizing? could you have been nationalizing? could he have been nationalizing? could we have been nationalizing? could you have been nationalizing? could they have been nationalizing?

Interro-negative form

Simple form	V-ing form
couldn't I nationalize? couldn't you nationalize? couldn't he nationalize? couldn't we nationalize? couldn't you nationalize? couldn't they nationalize?	couldn't I be nationalizing? couldn't you be nationalizing? couldn't he be nationalizing? couldn't we be nationalizing? couldn't you be nationalizing? couldn't they be nationalizing?
Perfect	V-ing perfect
couldn't I have nationalized? couldn't you have nationalized? couldn't he have nationalized? couldn't we have nationalized? couldn't you have nationalized? couldn't they have nationalized?	couldn't I have been nationalizing? couldn't you have been nationalizing? couldn't he have been nationalizing? couldn't we have been nationalizing? couldn't you have been nationalizing? couldn't they have been nationalizing?