English verb conjugation
MUST FLIP-FLOP

Regular verb: flip-flop - flip-floped - flip-floped

Affirmation

Simple form	V-ing form
I must flip-flop you must flip-flop he must flip-flop we must flip-flop you must flip-flop they must flip-flop	I must be flip-floping you must be flip-floping he must be flip-floping we must be flip-floping you must be flip-floping they must be flip-floping
Perfect	V-ing perfect
I must have flip-floped you must have flip-floped he must have flip-floped we must have flip-floped you must have flip-floped they must have flip-floped	I must have been flip-floping you must have been flip-floping he must have been flip-floping we must have been flip-floping you must have been flip-floping they must have been flip-floping

Negation

Simple form	V-ing form
I must not flip-flop you must not flip-flop he must not flip-flop we must not flip-flop you must not flip-flop they must not flip-flop	I must not be flip-floping you must not be flip-floping he must not be flip-floping we must not be flip-floping you must not be flip-floping they must not be flip-floping
Perfect	V-ing perfect
I must not have flip-floped you must not have flip-floped he must not have flip-floped we must not have flip-floped you must not have flip-floped they must not have flip-floped	I must not have been flip-floping you must not have been flip-floping he must not have been flip-floping we must not have been flip-floping you must not have been flip-floping they must not have been flip-floping

Interrogative form

Simple form	V-ing form
must I flip-flop? must you flip-flop? must he flip-flop? must we flip-flop? must you flip-flop? must they flip-flop?	must I be flip-floping? must you be flip-floping? must he be flip-floping? must we be flip-floping? must you be flip-floping? must they be flip-floping?
Perfect	V-ing perfect
must I have flip-floped? must you have flip-floped? must he have flip-floped? must we have flip-floped? must you have flip-floped? must they have flip-floped?	must I have been flip-floping? must you have been flip-floping? must he have been flip-floping? must we have been flip-floping? must you have been flip-floping? must they have been flip-floping?

Interro-negative form

Simple form	V-ing form
must I not flip-flop? must you not flip-flop? must he not flip-flop? must we not flip-flop? must you not flip-flop? must they not flip-flop?	must I not be flip-floping? must you not be flip-floping? must he not be flip-floping? must we not be flip-floping? must you not be flip-floping? must they not be flip-floping?
Perfect	V-ing perfect
must I not have flip-floped? must you not have flip-floped? must he not have flip-floped? must we not have flip-floped? must you not have flip-floped? must they not have flip-floped?	must I not have been flip-floping? must you not have been flip-floping? must he not have been flip-floping? must we not have been flip-floping? must you not have been flip-floping? must they not have been flip-floping?