must retag
Regular verb: retag - retaged- retaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must retag
you must retag
she must retag
we must retag
you must retag
they must retag 	I must be retaging
you must be retaging
she must be retaging
we must be retaging
you must be retaging
they must be retaging	I must have retaged
you must have retaged
she must have retaged
we must have retaged
you must have retaged
they must have retaged	I must have been retaging
you must have been retaging
she must have been retaging
we must have been retaging
you must have been retaging
they must have been retaging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not retag
you must not retag
she must not retag
we must not retag
you must not retag
they must not retag 	I must not be retaging
you must not be retaging
she must not be retaging
we must not be retaging
you must not be retaging
they must not be retaging	I must not have retaged
you must not have retaged
she must not have retaged
we must not have retaged
you must not have retaged
they must not have retaged	I must not have been retaging
you must not have been retaging
she must not have been retaging
we must not have been retaging
you must not have been retaging
they must not have been retaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I retag?
must you retag?
must she retag?
must we retag?
must you retag?
must they retag? 	must I be retaging?
must you be retaging?
must she be retaging?
must we be retaging?
must you be retaging?
must they be retaging? 	must I have retaged?
must you have retaged?
must she have retaged?
must we have retaged?
must you have retaged?
must they have retaged? 	must I have been retaging?
must you have been retaging?
must she have been retaging?
must we have been retaging?
must you have been retaging?
must they have been retaging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not retag?
must you not retag?
must she not retag?
must we not retag?
must you not retag?
must they not retag? 	must I not be retaging?
must you not be retaging?
must she not be retaging?
must we not be retaging?
must you not be retaging?
must they not be retaging? 	must I not have retaged?
must you not have retaged?
must she not have retaged?
must we not have retaged?
must you not have retaged?
must they not have retaged? 	must I not have been retaging?
must you not have been retaging?
must she not have been retaging?
must we not have been retaging?
must you not have been retaging?
must they not have been retaging?