English verb conjugation
COULD DECEREBRATE

Regular verb: decerebrate - decerebrated - decerebrated

Affirmation

Simple form	V-ing form
I could decerebrate you could decerebrate he could decerebrate we could decerebrate you could decerebrate they could decerebrate	I could be decerebrating you could be decerebrating he could be decerebrating we could be decerebrating you could be decerebrating they could be decerebrating
Perfect	V-ing perfect
I could have decerebrated you could have decerebrated he could have decerebrated we could have decerebrated you could have decerebrated they could have decerebrated	I could have been decerebrating you could have been decerebrating he could have been decerebrating we could have been decerebrating you could have been decerebrating they could have been decerebrating

Negation

Simple form	V-ing form
I couldn't decerebrate you couldn't decerebrate he couldn't decerebrate we couldn't decerebrate you couldn't decerebrate they couldn't decerebrate	I couldn't be decerebrating you couldn't be decerebrating he couldn't be decerebrating we couldn't be decerebrating you couldn't be decerebrating they couldn't be decerebrating
Perfect	V-ing perfect
I couldn't have decerebrated you couldn't have decerebrated he couldn't have decerebrated we couldn't have decerebrated you couldn't have decerebrated they couldn't have decerebrated	I couldn't have been decerebrating you couldn't have been decerebrating he couldn't have been decerebrating we couldn't have been decerebrating you couldn't have been decerebrating they couldn't have been decerebrating

Interrogative form

Simple form	V-ing form
could I decerebrate? could you decerebrate? could he decerebrate? could we decerebrate? could you decerebrate? could they decerebrate?	could I be decerebrating? could you be decerebrating? could he be decerebrating? could we be decerebrating? could you be decerebrating? could they be decerebrating?
Perfect	V-ing perfect
could I have decerebrated? could you have decerebrated? could he have decerebrated? could we have decerebrated? could you have decerebrated? could they have decerebrated?	could I have been decerebrating? could you have been decerebrating? could he have been decerebrating? could we have been decerebrating? could you have been decerebrating? could they have been decerebrating?

Interro-negative form

Simple form	V-ing form
couldn't I decerebrate? couldn't you decerebrate? couldn't he decerebrate? couldn't we decerebrate? couldn't you decerebrate? couldn't they decerebrate?	couldn't I be decerebrating? couldn't you be decerebrating? couldn't he be decerebrating? couldn't we be decerebrating? couldn't you be decerebrating? couldn't they be decerebrating?
Perfect	V-ing perfect
couldn't I have decerebrated? couldn't you have decerebrated? couldn't he have decerebrated? couldn't we have decerebrated? couldn't you have decerebrated? couldn't they have decerebrated?	couldn't I have been decerebrating? couldn't you have been decerebrating? couldn't he have been decerebrating? couldn't we have been decerebrating? couldn't you have been decerebrating? couldn't they have been decerebrating?