English verb conjugation
MUST COUNTERWEIGHT

Regular verb: counterweight - counterweighted - counterweighted

Affirmation

Simple form	V-ing form
I must counterweight you must counterweight he must counterweight we must counterweight you must counterweight they must counterweight	I must be counterweighting you must be counterweighting he must be counterweighting we must be counterweighting you must be counterweighting they must be counterweighting
Perfect	V-ing perfect
I must have counterweighted you must have counterweighted he must have counterweighted we must have counterweighted you must have counterweighted they must have counterweighted	I must have been counterweighting you must have been counterweighting he must have been counterweighting we must have been counterweighting you must have been counterweighting they must have been counterweighting

Negation

Simple form	V-ing form
I must not counterweight you must not counterweight he must not counterweight we must not counterweight you must not counterweight they must not counterweight	I must not be counterweighting you must not be counterweighting he must not be counterweighting we must not be counterweighting you must not be counterweighting they must not be counterweighting
Perfect	V-ing perfect
I must not have counterweighted you must not have counterweighted he must not have counterweighted we must not have counterweighted you must not have counterweighted they must not have counterweighted	I must not have been counterweighting you must not have been counterweighting he must not have been counterweighting we must not have been counterweighting you must not have been counterweighting they must not have been counterweighting

Interrogative form

Simple form	V-ing form
must I counterweight? must you counterweight? must he counterweight? must we counterweight? must you counterweight? must they counterweight?	must I be counterweighting? must you be counterweighting? must he be counterweighting? must we be counterweighting? must you be counterweighting? must they be counterweighting?
Perfect	V-ing perfect
must I have counterweighted? must you have counterweighted? must he have counterweighted? must we have counterweighted? must you have counterweighted? must they have counterweighted?	must I have been counterweighting? must you have been counterweighting? must he have been counterweighting? must we have been counterweighting? must you have been counterweighting? must they have been counterweighting?

Interro-negative form

Simple form	V-ing form
must I not counterweight? must you not counterweight? must he not counterweight? must we not counterweight? must you not counterweight? must they not counterweight?	must I not be counterweighting? must you not be counterweighting? must he not be counterweighting? must we not be counterweighting? must you not be counterweighting? must they not be counterweighting?
Perfect	V-ing perfect
must I not have counterweighted? must you not have counterweighted? must he not have counterweighted? must we not have counterweighted? must you not have counterweighted? must they not have counterweighted?	must I not have been counterweighting? must you not have been counterweighting? must he not have been counterweighting? must we not have been counterweighting? must you not have been counterweighting? must they not have been counterweighting?