English verb conjugation
COULD INVIGILATE INVIGILATE

Regular verb: invigilate invigilate - invigilate invigilated - invigilate invigilated

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

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

Negation

Simple form	V-ing form
I could not invigilate invigilate you could not invigilate invigilate he could not invigilate invigilate we could not invigilate invigilate you could not invigilate invigilate they could not invigilate invigilate	I could not be invigilate invigilating you could not be invigilate invigilating he could not be invigilate invigilating we could not be invigilate invigilating you could not be invigilate invigilating they could not be invigilate invigilating
Perfect	V-ing perfect
I could not have invigilate invigilated you could not have invigilate invigilated he could not have invigilate invigilated we could not have invigilate invigilated you could not have invigilate invigilated they could not have invigilate invigilated	I could not have been invigilate invigilating you could not have been invigilate invigilating he could not have been invigilate invigilating we could not have been invigilate invigilating you could not have been invigilate invigilating they could not have been invigilate invigilating

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not invigilate invigilate? could you not invigilate invigilate? could he not invigilate invigilate? could we not invigilate invigilate? could you not invigilate invigilate? could they not invigilate invigilate?	could I not be invigilate invigilating? could you not be invigilate invigilating? could he not be invigilate invigilating? could we not be invigilate invigilating? could you not be invigilate invigilating? could they not be invigilate invigilating?
Perfect	V-ing perfect
could I not have invigilate invigilated? could you not have invigilate invigilated? could he not have invigilate invigilated? could we not have invigilate invigilated? could you not have invigilate invigilated? could they not have invigilate invigilated?	could I not have been invigilate invigilating? could you not have been invigilate invigilating? could he not have been invigilate invigilating? could we not have been invigilate invigilating? could you not have been invigilate invigilating? could they not have been invigilate invigilating?