English verb conjugation
MUST THAW

Regular verb: thaw - thawed - thawed

Affirmation

Simple form	V-ing form
I must thaw you must thaw he must thaw we must thaw you must thaw they must thaw	I must be thawing you must be thawing he must be thawing we must be thawing you must be thawing they must be thawing
Perfect	V-ing perfect
I must have thawed you must have thawed he must have thawed we must have thawed you must have thawed they must have thawed	I must have been thawing you must have been thawing he must have been thawing we must have been thawing you must have been thawing they must have been thawing

Negation

Simple form	V-ing form
I mustn't thaw you mustn't thaw he mustn't thaw we mustn't thaw you mustn't thaw they mustn't thaw	I mustn't be thawing you mustn't be thawing he mustn't be thawing we mustn't be thawing you mustn't be thawing they mustn't be thawing
Perfect	V-ing perfect
I mustn't have thawed you mustn't have thawed he mustn't have thawed we mustn't have thawed you mustn't have thawed they mustn't have thawed	I mustn't have been thawing you mustn't have been thawing he mustn't have been thawing we mustn't have been thawing you mustn't have been thawing they mustn't have been thawing

Interrogative form

Simple form	V-ing form
must I thaw? must you thaw? must he thaw? must we thaw? must you thaw? must they thaw?	must I be thawing? must you be thawing? must he be thawing? must we be thawing? must you be thawing? must they be thawing?
Perfect	V-ing perfect
must I have thawed? must you have thawed? must he have thawed? must we have thawed? must you have thawed? must they have thawed?	must I have been thawing? must you have been thawing? must he have been thawing? must we have been thawing? must you have been thawing? must they have been thawing?

Interro-negative form

Simple form	V-ing form
mustn't I thaw? mustn't you thaw? mustn't he thaw? mustn't we thaw? mustn't you thaw? mustn't they thaw?	mustn't I be thawing? mustn't you be thawing? mustn't he be thawing? mustn't we be thawing? mustn't you be thawing? mustn't they be thawing?
Perfect	V-ing perfect
mustn't I have thawed? mustn't you have thawed? mustn't he have thawed? mustn't we have thawed? mustn't you have thawed? mustn't they have thawed?	mustn't I have been thawing? mustn't you have been thawing? mustn't he have been thawing? mustn't we have been thawing? mustn't you have been thawing? mustn't they have been thawing?