must strip
Regular verb: strip - stripped- stripped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must strip
you must strip
he must strip
we must strip
you must strip
they must strip 	I must be stripping
you must be stripping
he must be stripping
we must be stripping
you must be stripping
they must be stripping	I must have stripped
you must have stripped
he must have stripped
we must have stripped
you must have stripped
they must have stripped	I must have been stripping
you must have been stripping
he must have been stripping
we must have been stripping
you must have been stripping
they must have been stripping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't strip
you mustn't strip
he mustn't strip
we mustn't strip
you mustn't strip
they mustn't strip 	I mustn't be stripping
you mustn't be stripping
he mustn't be stripping
we mustn't be stripping
you mustn't be stripping
they mustn't be stripping	I mustn't have stripped
you mustn't have stripped
he mustn't have stripped
we mustn't have stripped
you mustn't have stripped
they mustn't have stripped	I mustn't have been stripping
you mustn't have been stripping
he mustn't have been stripping
we mustn't have been stripping
you mustn't have been stripping
they mustn't have been stripping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I strip?
must you strip?
must he strip?
must we strip?
must you strip?
must they strip? 	must I be stripping?
must you be stripping?
must he be stripping?
must we be stripping?
must you be stripping?
must they be stripping? 	must I have stripped?
must you have stripped?
must he have stripped?
must we have stripped?
must you have stripped?
must they have stripped? 	must I have been stripping?
must you have been stripping?
must he have been stripping?
must we have been stripping?
must you have been stripping?
must they have been stripping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I strip?
mustn't you strip?
mustn't he strip?
mustn't we strip?
mustn't you strip?
mustn't they strip? 	mustn't I be stripping?
mustn't you be stripping?
mustn't he be stripping?
mustn't we be stripping?
mustn't you be stripping?
mustn't they be stripping? 	mustn't I have stripped?
mustn't you have stripped?
mustn't he have stripped?
mustn't we have stripped?
mustn't you have stripped?
mustn't they have stripped? 	mustn't I have been stripping?
mustn't you have been stripping?
mustn't he have been stripping?
mustn't we have been stripping?
mustn't you have been stripping?
mustn't they have been stripping?