I must plink you must plink she must plink we must plink you must plink they must plink
V-ing form
I must be plinking you must be plinking she must be plinking we must be plinking you must be plinking they must be plinking
Perfect
I must have plinked you must have plinked she must have plinked we must have plinked you must have plinked they must have plinked
V-ing perfect
I must have been plinking you must have been plinking she must have been plinking we must have been plinking you must have been plinking they must have been plinking
Negation
Simple form
I mustn't plink you mustn't plink she mustn't plink we mustn't plink you mustn't plink they mustn't plink
V-ing form
I mustn't be plinking you mustn't be plinking she mustn't be plinking we mustn't be plinking you mustn't be plinking they mustn't be plinking
Perfect
I mustn't have plinked you mustn't have plinked she mustn't have plinked we mustn't have plinked you mustn't have plinked they mustn't have plinked
V-ing perfect
I mustn't have been plinking you mustn't have been plinking she mustn't have been plinking we mustn't have been plinking you mustn't have been plinking they mustn't have been plinking
Interrogative form
Simple form
must I plink? must you plink? must she plink? must we plink? must you plink? must they plink?
V-ing form
must I be plinking? must you be plinking? must she be plinking? must we be plinking? must you be plinking? must they be plinking?
Perfect
must I have plinked? must you have plinked? must she have plinked? must we have plinked? must you have plinked? must they have plinked?
V-ing perfect
must I have been plinking? must you have been plinking? must she have been plinking? must we have been plinking? must you have been plinking? must they have been plinking?
Interro-negative form
Simple form
mustn't I plink? mustn't you plink? mustn't she plink? mustn't we plink? mustn't you plink? mustn't they plink?
V-ing form
mustn't I be plinking? mustn't you be plinking? mustn't she be plinking? mustn't we be plinking? mustn't you be plinking? mustn't they be plinking?
Perfect
mustn't I have plinked? mustn't you have plinked? mustn't she have plinked? mustn't we have plinked? mustn't you have plinked? mustn't they have plinked?
V-ing perfect
mustn't I have been plinking? mustn't you have been plinking? mustn't she have been plinking? mustn't we have been plinking? mustn't you have been plinking? mustn't they have been plinking?