English verb conjugation
MUST TUCK

Regular verb: tuck - tucked - tucked

Affirmation

Simple form	V-ing form
I must tuck you must tuck she must tuck we must tuck you must tuck they must tuck	I must be tucking you must be tucking she must be tucking we must be tucking you must be tucking they must be tucking
Perfect	V-ing perfect
I must have tucked you must have tucked she must have tucked we must have tucked you must have tucked they must have tucked	I must have been tucking you must have been tucking she must have been tucking we must have been tucking you must have been tucking they must have been tucking

Negation

Simple form	V-ing form
I mustn't tuck you mustn't tuck she mustn't tuck we mustn't tuck you mustn't tuck they mustn't tuck	I mustn't be tucking you mustn't be tucking she mustn't be tucking we mustn't be tucking you mustn't be tucking they mustn't be tucking
Perfect	V-ing perfect
I mustn't have tucked you mustn't have tucked she mustn't have tucked we mustn't have tucked you mustn't have tucked they mustn't have tucked	I mustn't have been tucking you mustn't have been tucking she mustn't have been tucking we mustn't have been tucking you mustn't have been tucking they mustn't have been tucking

Interrogative form

Simple form	V-ing form
must I tuck? must you tuck? must she tuck? must we tuck? must you tuck? must they tuck?	must I be tucking? must you be tucking? must she be tucking? must we be tucking? must you be tucking? must they be tucking?
Perfect	V-ing perfect
must I have tucked? must you have tucked? must she have tucked? must we have tucked? must you have tucked? must they have tucked?	must I have been tucking? must you have been tucking? must she have been tucking? must we have been tucking? must you have been tucking? must they have been tucking?

Interro-negative form

Simple form	V-ing form
mustn't I tuck? mustn't you tuck? mustn't she tuck? mustn't we tuck? mustn't you tuck? mustn't they tuck?	mustn't I be tucking? mustn't you be tucking? mustn't she be tucking? mustn't we be tucking? mustn't you be tucking? mustn't they be tucking?
Perfect	V-ing perfect
mustn't I have tucked? mustn't you have tucked? mustn't she have tucked? mustn't we have tucked? mustn't you have tucked? mustn't they have tucked?	mustn't I have been tucking? mustn't you have been tucking? mustn't she have been tucking? mustn't we have been tucking? mustn't you have been tucking? mustn't they have been tucking?