English verb conjugation
MUST COUNTERPOISE

Regular verb: counterpoise - counterpoised - counterpoised

Affirmation

Simple form	V-ing form
I must counterpoise you must counterpoise she must counterpoise we must counterpoise you must counterpoise they must counterpoise	I must be counterpoising you must be counterpoising she must be counterpoising we must be counterpoising you must be counterpoising they must be counterpoising
Perfect	V-ing perfect
I must have counterpoised you must have counterpoised she must have counterpoised we must have counterpoised you must have counterpoised they must have counterpoised	I must have been counterpoising you must have been counterpoising she must have been counterpoising we must have been counterpoising you must have been counterpoising they must have been counterpoising

Negation

Simple form	V-ing form
I must not counterpoise you must not counterpoise she must not counterpoise we must not counterpoise you must not counterpoise they must not counterpoise	I must not be counterpoising you must not be counterpoising she must not be counterpoising we must not be counterpoising you must not be counterpoising they must not be counterpoising
Perfect	V-ing perfect
I must not have counterpoised you must not have counterpoised she must not have counterpoised we must not have counterpoised you must not have counterpoised they must not have counterpoised	I must not have been counterpoising you must not have been counterpoising she must not have been counterpoising we must not have been counterpoising you must not have been counterpoising they must not have been counterpoising

Interrogative form

Simple form	V-ing form
must I counterpoise? must you counterpoise? must she counterpoise? must we counterpoise? must you counterpoise? must they counterpoise?	must I be counterpoising? must you be counterpoising? must she be counterpoising? must we be counterpoising? must you be counterpoising? must they be counterpoising?
Perfect	V-ing perfect
must I have counterpoised? must you have counterpoised? must she have counterpoised? must we have counterpoised? must you have counterpoised? must they have counterpoised?	must I have been counterpoising? must you have been counterpoising? must she have been counterpoising? must we have been counterpoising? must you have been counterpoising? must they have been counterpoising?

Interro-negative form

Simple form	V-ing form
must I not counterpoise? must you not counterpoise? must she not counterpoise? must we not counterpoise? must you not counterpoise? must they not counterpoise?	must I not be counterpoising? must you not be counterpoising? must she not be counterpoising? must we not be counterpoising? must you not be counterpoising? must they not be counterpoising?
Perfect	V-ing perfect
must I not have counterpoised? must you not have counterpoised? must she not have counterpoised? must we not have counterpoised? must you not have counterpoised? must they not have counterpoised?	must I not have been counterpoising? must you not have been counterpoising? must she not have been counterpoising? must we not have been counterpoising? must you not have been counterpoising? must they not have been counterpoising?