English verb conjugation
MUST SWISH

Regular verb: swish - swished - swished

Affirmation

Simple form	V-ing form
I must swish you must swish he must swish we must swish you must swish they must swish	I must be swishing you must be swishing he must be swishing we must be swishing you must be swishing they must be swishing
Perfect	V-ing perfect
I must have swished you must have swished he must have swished we must have swished you must have swished they must have swished	I must have been swishing you must have been swishing he must have been swishing we must have been swishing you must have been swishing they must have been swishing

Negation

Simple form	V-ing form
I must not swish you must not swish he must not swish we must not swish you must not swish they must not swish	I must not be swishing you must not be swishing he must not be swishing we must not be swishing you must not be swishing they must not be swishing
Perfect	V-ing perfect
I must not have swished you must not have swished he must not have swished we must not have swished you must not have swished they must not have swished	I must not have been swishing you must not have been swishing he must not have been swishing we must not have been swishing you must not have been swishing they must not have been swishing

Interrogative form

Simple form	V-ing form
must I swish? must you swish? must he swish? must we swish? must you swish? must they swish?	must I be swishing? must you be swishing? must he be swishing? must we be swishing? must you be swishing? must they be swishing?
Perfect	V-ing perfect
must I have swished? must you have swished? must he have swished? must we have swished? must you have swished? must they have swished?	must I have been swishing? must you have been swishing? must he have been swishing? must we have been swishing? must you have been swishing? must they have been swishing?

Interro-negative form

Simple form	V-ing form
must I not swish? must you not swish? must he not swish? must we not swish? must you not swish? must they not swish?	must I not be swishing? must you not be swishing? must he not be swishing? must we not be swishing? must you not be swishing? must they not be swishing?
Perfect	V-ing perfect
must I not have swished? must you not have swished? must he not have swished? must we not have swished? must you not have swished? must they not have swished?	must I not have been swishing? must you not have been swishing? must he not have been swishing? must we not have been swishing? must you not have been swishing? must they not have been swishing?