English verb conjugation
COULD BE

Irregular verb: be - was/were - been

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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