English verb conjugation
COULD CORUSCATE

Regular verb: coruscate - coruscated - coruscated

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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