English verb conjugation
MUST FLOUNDER

Regular verb: flounder - floundered - floundered

Affirmation

Simple form	V-ing form
I must flounder you must flounder he must flounder we must flounder you must flounder they must flounder	I must be floundering you must be floundering he must be floundering we must be floundering you must be floundering they must be floundering
Perfect	V-ing perfect
I must have floundered you must have floundered he must have floundered we must have floundered you must have floundered they must have floundered	I must have been floundering you must have been floundering he must have been floundering we must have been floundering you must have been floundering they must have been floundering

Negation

Simple form	V-ing form
I must not flounder you must not flounder he must not flounder we must not flounder you must not flounder they must not flounder	I must not be floundering you must not be floundering he must not be floundering we must not be floundering you must not be floundering they must not be floundering
Perfect	V-ing perfect
I must not have floundered you must not have floundered he must not have floundered we must not have floundered you must not have floundered they must not have floundered	I must not have been floundering you must not have been floundering he must not have been floundering we must not have been floundering you must not have been floundering they must not have been floundering

Interrogative form

Simple form	V-ing form
must I flounder? must you flounder? must he flounder? must we flounder? must you flounder? must they flounder?	must I be floundering? must you be floundering? must he be floundering? must we be floundering? must you be floundering? must they be floundering?
Perfect	V-ing perfect
must I have floundered? must you have floundered? must he have floundered? must we have floundered? must you have floundered? must they have floundered?	must I have been floundering? must you have been floundering? must he have been floundering? must we have been floundering? must you have been floundering? must they have been floundering?

Interro-negative form

Simple form	V-ing form
must I not flounder? must you not flounder? must he not flounder? must we not flounder? must you not flounder? must they not flounder?	must I not be floundering? must you not be floundering? must he not be floundering? must we not be floundering? must you not be floundering? must they not be floundering?
Perfect	V-ing perfect
must I not have floundered? must you not have floundered? must he not have floundered? must we not have floundered? must you not have floundered? must they not have floundered?	must I not have been floundering? must you not have been floundering? must he not have been floundering? must we not have been floundering? must you not have been floundering? must they not have been floundering?