English verb conjugation
MUST THAW

Regular verb: thaw - thawed - thawed

Affirmation

Simple form	V-ing form
I must thaw you must thaw she must thaw we must thaw you must thaw they must thaw	I must be thawing you must be thawing she 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 she 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 she 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 must not thaw you must not thaw she must not thaw we must not thaw you must not thaw they must not thaw	I must not be thawing you must not be thawing she must not be thawing we must not be thawing you must not be thawing they must not be thawing
Perfect	V-ing perfect
I must not have thawed you must not have thawed she must not have thawed we must not have thawed you must not have thawed they must not have thawed	I must not have been thawing you must not have been thawing she must not have been thawing we must not have been thawing you must not have been thawing they must not have been thawing

Interrogative form

Simple form	V-ing form
must I thaw? must you thaw? must she thaw? must we thaw? must you thaw? must they thaw?	must I be thawing? must you be thawing? must she 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 she 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 she 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
must I not thaw? must you not thaw? must she not thaw? must we not thaw? must you not thaw? must they not thaw?	must I not be thawing? must you not be thawing? must she not be thawing? must we not be thawing? must you not be thawing? must they not be thawing?
Perfect	V-ing perfect
must I not have thawed? must you not have thawed? must she not have thawed? must we not have thawed? must you not have thawed? must they not have thawed?	must I not have been thawing? must you not have been thawing? must she not have been thawing? must we not have been thawing? must you not have been thawing? must they not have been thawing?