must slew
Regular verb: slew - slewed- slewed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slew
you must slew
he must slew
we must slew
you must slew
they must slew 	I must be slewing
you must be slewing
he must be slewing
we must be slewing
you must be slewing
they must be slewing	I must have slewed
you must have slewed
he must have slewed
we must have slewed
you must have slewed
they must have slewed	I must have been slewing
you must have been slewing
he must have been slewing
we must have been slewing
you must have been slewing
they must have been slewing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slew
you mustn't slew
he mustn't slew
we mustn't slew
you mustn't slew
they mustn't slew 	I mustn't be slewing
you mustn't be slewing
he mustn't be slewing
we mustn't be slewing
you mustn't be slewing
they mustn't be slewing	I mustn't have slewed
you mustn't have slewed
he mustn't have slewed
we mustn't have slewed
you mustn't have slewed
they mustn't have slewed	I mustn't have been slewing
you mustn't have been slewing
he mustn't have been slewing
we mustn't have been slewing
you mustn't have been slewing
they mustn't have been slewing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slew?
must you slew?
must he slew?
must we slew?
must you slew?
must they slew? 	must I be slewing?
must you be slewing?
must he be slewing?
must we be slewing?
must you be slewing?
must they be slewing? 	must I have slewed?
must you have slewed?
must he have slewed?
must we have slewed?
must you have slewed?
must they have slewed? 	must I have been slewing?
must you have been slewing?
must he have been slewing?
must we have been slewing?
must you have been slewing?
must they have been slewing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I slew?
mustn't you slew?
mustn't he slew?
mustn't we slew?
mustn't you slew?
mustn't they slew? 	mustn't I be slewing?
mustn't you be slewing?
mustn't he be slewing?
mustn't we be slewing?
mustn't you be slewing?
mustn't they be slewing? 	mustn't I have slewed?
mustn't you have slewed?
mustn't he have slewed?
mustn't we have slewed?
mustn't you have slewed?
mustn't they have slewed? 	mustn't I have been slewing?
mustn't you have been slewing?
mustn't he have been slewing?
mustn't we have been slewing?
mustn't you have been slewing?
mustn't they have been slewing?