English verb conjugation
COULD SUPPURATE

Regular verb: suppurate - suppurated - suppurated

Affirmation

Simple form	V-ing form
I could suppurate you could suppurate he could suppurate we could suppurate you could suppurate they could suppurate	I could be suppurating you could be suppurating he could be suppurating we could be suppurating you could be suppurating they could be suppurating
Perfect	V-ing perfect
I could have suppurated you could have suppurated he could have suppurated we could have suppurated you could have suppurated they could have suppurated	I could have been suppurating you could have been suppurating he could have been suppurating we could have been suppurating you could have been suppurating they could have been suppurating

Negation

Simple form	V-ing form
I couldn't suppurate you couldn't suppurate he couldn't suppurate we couldn't suppurate you couldn't suppurate they couldn't suppurate	I couldn't be suppurating you couldn't be suppurating he couldn't be suppurating we couldn't be suppurating you couldn't be suppurating they couldn't be suppurating
Perfect	V-ing perfect
I couldn't have suppurated you couldn't have suppurated he couldn't have suppurated we couldn't have suppurated you couldn't have suppurated they couldn't have suppurated	I couldn't have been suppurating you couldn't have been suppurating he couldn't have been suppurating we couldn't have been suppurating you couldn't have been suppurating they couldn't have been suppurating

Interrogative form

Simple form	V-ing form
could I suppurate? could you suppurate? could he suppurate? could we suppurate? could you suppurate? could they suppurate?	could I be suppurating? could you be suppurating? could he be suppurating? could we be suppurating? could you be suppurating? could they be suppurating?
Perfect	V-ing perfect
could I have suppurated? could you have suppurated? could he have suppurated? could we have suppurated? could you have suppurated? could they have suppurated?	could I have been suppurating? could you have been suppurating? could he have been suppurating? could we have been suppurating? could you have been suppurating? could they have been suppurating?

Interro-negative form

Simple form	V-ing form
couldn't I suppurate? couldn't you suppurate? couldn't he suppurate? couldn't we suppurate? couldn't you suppurate? couldn't they suppurate?	couldn't I be suppurating? couldn't you be suppurating? couldn't he be suppurating? couldn't we be suppurating? couldn't you be suppurating? couldn't they be suppurating?
Perfect	V-ing perfect
couldn't I have suppurated? couldn't you have suppurated? couldn't he have suppurated? couldn't we have suppurated? couldn't you have suppurated? couldn't they have suppurated?	couldn't I have been suppurating? couldn't you have been suppurating? couldn't he have been suppurating? couldn't we have been suppurating? couldn't you have been suppurating? couldn't they have been suppurating?