English verb conjugation
MUST COUNTERCLAIM

Regular verb: counterclaim - counterclaimed - counterclaimed

Affirmation

Simple form	V-ing form
I must counterclaim you must counterclaim he must counterclaim we must counterclaim you must counterclaim they must counterclaim	I must be counterclaiming you must be counterclaiming he must be counterclaiming we must be counterclaiming you must be counterclaiming they must be counterclaiming
Perfect	V-ing perfect
I must have counterclaimed you must have counterclaimed he must have counterclaimed we must have counterclaimed you must have counterclaimed they must have counterclaimed	I must have been counterclaiming you must have been counterclaiming he must have been counterclaiming we must have been counterclaiming you must have been counterclaiming they must have been counterclaiming

Negation

Simple form	V-ing form
I must not counterclaim you must not counterclaim he must not counterclaim we must not counterclaim you must not counterclaim they must not counterclaim	I must not be counterclaiming you must not be counterclaiming he must not be counterclaiming we must not be counterclaiming you must not be counterclaiming they must not be counterclaiming
Perfect	V-ing perfect
I must not have counterclaimed you must not have counterclaimed he must not have counterclaimed we must not have counterclaimed you must not have counterclaimed they must not have counterclaimed	I must not have been counterclaiming you must not have been counterclaiming he must not have been counterclaiming we must not have been counterclaiming you must not have been counterclaiming they must not have been counterclaiming

Interrogative form

Simple form	V-ing form
must I counterclaim? must you counterclaim? must he counterclaim? must we counterclaim? must you counterclaim? must they counterclaim?	must I be counterclaiming? must you be counterclaiming? must he be counterclaiming? must we be counterclaiming? must you be counterclaiming? must they be counterclaiming?
Perfect	V-ing perfect
must I have counterclaimed? must you have counterclaimed? must he have counterclaimed? must we have counterclaimed? must you have counterclaimed? must they have counterclaimed?	must I have been counterclaiming? must you have been counterclaiming? must he have been counterclaiming? must we have been counterclaiming? must you have been counterclaiming? must they have been counterclaiming?

Interro-negative form

Simple form	V-ing form
must I not counterclaim? must you not counterclaim? must he not counterclaim? must we not counterclaim? must you not counterclaim? must they not counterclaim?	must I not be counterclaiming? must you not be counterclaiming? must he not be counterclaiming? must we not be counterclaiming? must you not be counterclaiming? must they not be counterclaiming?
Perfect	V-ing perfect
must I not have counterclaimed? must you not have counterclaimed? must he not have counterclaimed? must we not have counterclaimed? must you not have counterclaimed? must they not have counterclaimed?	must I not have been counterclaiming? must you not have been counterclaiming? must he not have been counterclaiming? must we not have been counterclaiming? must you not have been counterclaiming? must they not have been counterclaiming?