must powder
Regular verb: powder - powdered- powdered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must powder
you must powder
he must powder
we must powder
you must powder
they must powder 	I must be powdering
you must be powdering
he must be powdering
we must be powdering
you must be powdering
they must be powdering	I must have powdered
you must have powdered
he must have powdered
we must have powdered
you must have powdered
they must have powdered	I must have been powdering
you must have been powdering
he must have been powdering
we must have been powdering
you must have been powdering
they must have been powdering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not powder
you must not powder
he must not powder
we must not powder
you must not powder
they must not powder 	I must not be powdering
you must not be powdering
he must not be powdering
we must not be powdering
you must not be powdering
they must not be powdering	I must not have powdered
you must not have powdered
he must not have powdered
we must not have powdered
you must not have powdered
they must not have powdered	I must not have been powdering
you must not have been powdering
he must not have been powdering
we must not have been powdering
you must not have been powdering
they must not have been powdering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I powder?
must you powder?
must he powder?
must we powder?
must you powder?
must they powder? 	must I be powdering?
must you be powdering?
must he be powdering?
must we be powdering?
must you be powdering?
must they be powdering? 	must I have powdered?
must you have powdered?
must he have powdered?
must we have powdered?
must you have powdered?
must they have powdered? 	must I have been powdering?
must you have been powdering?
must he have been powdering?
must we have been powdering?
must you have been powdering?
must they have been powdering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not powder?
must you not powder?
must he not powder?
must we not powder?
must you not powder?
must they not powder? 	must I not be powdering?
must you not be powdering?
must he not be powdering?
must we not be powdering?
must you not be powdering?
must they not be powdering? 	must I not have powdered?
must you not have powdered?
must he not have powdered?
must we not have powdered?
must you not have powdered?
must they not have powdered? 	must I not have been powdering?
must you not have been powdering?
must he not have been powdering?
must we not have been powdering?
must you not have been powdering?
must they not have been powdering?