English verb conjugation
MUST SCOUR

Regular verb: scour - scoured - scoured

Affirmation

Simple form	V-ing form
I must scour you must scour she must scour we must scour you must scour they must scour	I must be scouring you must be scouring she must be scouring we must be scouring you must be scouring they must be scouring
Perfect	V-ing perfect
I must have scoured you must have scoured she must have scoured we must have scoured you must have scoured they must have scoured	I must have been scouring you must have been scouring she must have been scouring we must have been scouring you must have been scouring they must have been scouring

Negation

Simple form	V-ing form
I mustn't scour you mustn't scour she mustn't scour we mustn't scour you mustn't scour they mustn't scour	I mustn't be scouring you mustn't be scouring she mustn't be scouring we mustn't be scouring you mustn't be scouring they mustn't be scouring
Perfect	V-ing perfect
I mustn't have scoured you mustn't have scoured she mustn't have scoured we mustn't have scoured you mustn't have scoured they mustn't have scoured	I mustn't have been scouring you mustn't have been scouring she mustn't have been scouring we mustn't have been scouring you mustn't have been scouring they mustn't have been scouring

Interrogative form

Simple form	V-ing form
must I scour? must you scour? must she scour? must we scour? must you scour? must they scour?	must I be scouring? must you be scouring? must she be scouring? must we be scouring? must you be scouring? must they be scouring?
Perfect	V-ing perfect
must I have scoured? must you have scoured? must she have scoured? must we have scoured? must you have scoured? must they have scoured?	must I have been scouring? must you have been scouring? must she have been scouring? must we have been scouring? must you have been scouring? must they have been scouring?

Interro-negative form

Simple form	V-ing form
mustn't I scour? mustn't you scour? mustn't she scour? mustn't we scour? mustn't you scour? mustn't they scour?	mustn't I be scouring? mustn't you be scouring? mustn't she be scouring? mustn't we be scouring? mustn't you be scouring? mustn't they be scouring?
Perfect	V-ing perfect
mustn't I have scoured? mustn't you have scoured? mustn't she have scoured? mustn't we have scoured? mustn't you have scoured? mustn't they have scoured?	mustn't I have been scouring? mustn't you have been scouring? mustn't she have been scouring? mustn't we have been scouring? mustn't you have been scouring? mustn't they have been scouring?