English verb conjugation
MUST SWIG

Regular verb: swig - swigged - swigged

Affirmation

Simple form	V-ing form
I must swig you must swig he must swig we must swig you must swig they must swig	I must be swigging you must be swigging he must be swigging we must be swigging you must be swigging they must be swigging
Perfect	V-ing perfect
I must have swigged you must have swigged he must have swigged we must have swigged you must have swigged they must have swigged	I must have been swigging you must have been swigging he must have been swigging we must have been swigging you must have been swigging they must have been swigging

Negation

Simple form	V-ing form
I must not swig you must not swig he must not swig we must not swig you must not swig they must not swig	I must not be swigging you must not be swigging he must not be swigging we must not be swigging you must not be swigging they must not be swigging
Perfect	V-ing perfect
I must not have swigged you must not have swigged he must not have swigged we must not have swigged you must not have swigged they must not have swigged	I must not have been swigging you must not have been swigging he must not have been swigging we must not have been swigging you must not have been swigging they must not have been swigging

Interrogative form

Simple form	V-ing form
must I swig? must you swig? must he swig? must we swig? must you swig? must they swig?	must I be swigging? must you be swigging? must he be swigging? must we be swigging? must you be swigging? must they be swigging?
Perfect	V-ing perfect
must I have swigged? must you have swigged? must he have swigged? must we have swigged? must you have swigged? must they have swigged?	must I have been swigging? must you have been swigging? must he have been swigging? must we have been swigging? must you have been swigging? must they have been swigging?

Interro-negative form

Simple form	V-ing form
must I not swig? must you not swig? must he not swig? must we not swig? must you not swig? must they not swig?	must I not be swigging? must you not be swigging? must he not be swigging? must we not be swigging? must you not be swigging? must they not be swigging?
Perfect	V-ing perfect
must I not have swigged? must you not have swigged? must he not have swigged? must we not have swigged? must you not have swigged? must they not have swigged?	must I not have been swigging? must you not have been swigging? must he not have been swigging? must we not have been swigging? must you not have been swigging? must they not have been swigging?