English verb conjugation
COULD LUSTRATE

Regular verb: lustrate - lustrated - lustrated

Affirmation

Simple form	V-ing form
I could lustrate you could lustrate she could lustrate we could lustrate you could lustrate they could lustrate	I could be lustrating you could be lustrating she could be lustrating we could be lustrating you could be lustrating they could be lustrating
Perfect	V-ing perfect
I could have lustrated you could have lustrated she could have lustrated we could have lustrated you could have lustrated they could have lustrated	I could have been lustrating you could have been lustrating she could have been lustrating we could have been lustrating you could have been lustrating they could have been lustrating

Negation

Simple form	V-ing form
I couldn't lustrate you couldn't lustrate she couldn't lustrate we couldn't lustrate you couldn't lustrate they couldn't lustrate	I couldn't be lustrating you couldn't be lustrating she couldn't be lustrating we couldn't be lustrating you couldn't be lustrating they couldn't be lustrating
Perfect	V-ing perfect
I couldn't have lustrated you couldn't have lustrated she couldn't have lustrated we couldn't have lustrated you couldn't have lustrated they couldn't have lustrated	I couldn't have been lustrating you couldn't have been lustrating she couldn't have been lustrating we couldn't have been lustrating you couldn't have been lustrating they couldn't have been lustrating

Interrogative form

Simple form	V-ing form
could I lustrate? could you lustrate? could she lustrate? could we lustrate? could you lustrate? could they lustrate?	could I be lustrating? could you be lustrating? could she be lustrating? could we be lustrating? could you be lustrating? could they be lustrating?
Perfect	V-ing perfect
could I have lustrated? could you have lustrated? could she have lustrated? could we have lustrated? could you have lustrated? could they have lustrated?	could I have been lustrating? could you have been lustrating? could she have been lustrating? could we have been lustrating? could you have been lustrating? could they have been lustrating?

Interro-negative form

Simple form	V-ing form
couldn't I lustrate? couldn't you lustrate? couldn't she lustrate? couldn't we lustrate? couldn't you lustrate? couldn't they lustrate?	couldn't I be lustrating? couldn't you be lustrating? couldn't she be lustrating? couldn't we be lustrating? couldn't you be lustrating? couldn't they be lustrating?
Perfect	V-ing perfect
couldn't I have lustrated? couldn't you have lustrated? couldn't she have lustrated? couldn't we have lustrated? couldn't you have lustrated? couldn't they have lustrated?	couldn't I have been lustrating? couldn't you have been lustrating? couldn't she have been lustrating? couldn't we have been lustrating? couldn't you have been lustrating? couldn't they have been lustrating?