English verb conjugation
COULD PROD

Regular verb: prod - prodded - prodded

Affirmation

Simple form	V-ing form
I could prod you could prod he could prod we could prod you could prod they could prod	I could be prodding you could be prodding he could be prodding we could be prodding you could be prodding they could be prodding
Perfect	V-ing perfect
I could have prodded you could have prodded he could have prodded we could have prodded you could have prodded they could have prodded	I could have been prodding you could have been prodding he could have been prodding we could have been prodding you could have been prodding they could have been prodding

Negation

Simple form	V-ing form
I could not prod you could not prod he could not prod we could not prod you could not prod they could not prod	I could not be prodding you could not be prodding he could not be prodding we could not be prodding you could not be prodding they could not be prodding
Perfect	V-ing perfect
I could not have prodded you could not have prodded he could not have prodded we could not have prodded you could not have prodded they could not have prodded	I could not have been prodding you could not have been prodding he could not have been prodding we could not have been prodding you could not have been prodding they could not have been prodding

Interrogative form

Simple form	V-ing form
could I prod? could you prod? could he prod? could we prod? could you prod? could they prod?	could I be prodding? could you be prodding? could he be prodding? could we be prodding? could you be prodding? could they be prodding?
Perfect	V-ing perfect
could I have prodded? could you have prodded? could he have prodded? could we have prodded? could you have prodded? could they have prodded?	could I have been prodding? could you have been prodding? could he have been prodding? could we have been prodding? could you have been prodding? could they have been prodding?

Interro-negative form

Simple form	V-ing form
could I not prod? could you not prod? could he not prod? could we not prod? could you not prod? could they not prod?	could I not be prodding? could you not be prodding? could he not be prodding? could we not be prodding? could you not be prodding? could they not be prodding?
Perfect	V-ing perfect
could I not have prodded? could you not have prodded? could he not have prodded? could we not have prodded? could you not have prodded? could they not have prodded?	could I not have been prodding? could you not have been prodding? could he not have been prodding? could we not have been prodding? could you not have been prodding? could they not have been prodding?