English verb conjugation
MUST SWELTER

Regular verb: swelter - sweltered - sweltered

Affirmation

Simple form	V-ing form
I must swelter you must swelter he must swelter we must swelter you must swelter they must swelter	I must be sweltering you must be sweltering he must be sweltering we must be sweltering you must be sweltering they must be sweltering
Perfect	V-ing perfect
I must have sweltered you must have sweltered he must have sweltered we must have sweltered you must have sweltered they must have sweltered	I must have been sweltering you must have been sweltering he must have been sweltering we must have been sweltering you must have been sweltering they must have been sweltering

Negation

Simple form	V-ing form
I must not swelter you must not swelter he must not swelter we must not swelter you must not swelter they must not swelter	I must not be sweltering you must not be sweltering he must not be sweltering we must not be sweltering you must not be sweltering they must not be sweltering
Perfect	V-ing perfect
I must not have sweltered you must not have sweltered he must not have sweltered we must not have sweltered you must not have sweltered they must not have sweltered	I must not have been sweltering you must not have been sweltering he must not have been sweltering we must not have been sweltering you must not have been sweltering they must not have been sweltering

Interrogative form

Simple form	V-ing form
must I swelter? must you swelter? must he swelter? must we swelter? must you swelter? must they swelter?	must I be sweltering? must you be sweltering? must he be sweltering? must we be sweltering? must you be sweltering? must they be sweltering?
Perfect	V-ing perfect
must I have sweltered? must you have sweltered? must he have sweltered? must we have sweltered? must you have sweltered? must they have sweltered?	must I have been sweltering? must you have been sweltering? must he have been sweltering? must we have been sweltering? must you have been sweltering? must they have been sweltering?

Interro-negative form

Simple form	V-ing form
must I not swelter? must you not swelter? must he not swelter? must we not swelter? must you not swelter? must they not swelter?	must I not be sweltering? must you not be sweltering? must he not be sweltering? must we not be sweltering? must you not be sweltering? must they not be sweltering?
Perfect	V-ing perfect
must I not have sweltered? must you not have sweltered? must he not have sweltered? must we not have sweltered? must you not have sweltered? must they not have sweltered?	must I not have been sweltering? must you not have been sweltering? must he not have been sweltering? must we not have been sweltering? must you not have been sweltering? must they not have been sweltering?