English verb conjugation
COULD INDURATE

Regular verb: indurate - indurated - indurated

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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