English verb conjugation
COULD COLLIMATE

Regular verb: collimate - collimated - collimated

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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