must skive
Regular verb: skive - skived- skived

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must skive
you must skive
he must skive
we must skive
you must skive
they must skive 	I must be skiving
you must be skiving
he must be skiving
we must be skiving
you must be skiving
they must be skiving	I must have skived
you must have skived
he must have skived
we must have skived
you must have skived
they must have skived	I must have been skiving
you must have been skiving
he must have been skiving
we must have been skiving
you must have been skiving
they must have been skiving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not skive
you must not skive
he must not skive
we must not skive
you must not skive
they must not skive 	I must not be skiving
you must not be skiving
he must not be skiving
we must not be skiving
you must not be skiving
they must not be skiving	I must not have skived
you must not have skived
he must not have skived
we must not have skived
you must not have skived
they must not have skived	I must not have been skiving
you must not have been skiving
he must not have been skiving
we must not have been skiving
you must not have been skiving
they must not have been skiving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I skive?
must you skive?
must he skive?
must we skive?
must you skive?
must they skive? 	must I be skiving?
must you be skiving?
must he be skiving?
must we be skiving?
must you be skiving?
must they be skiving? 	must I have skived?
must you have skived?
must he have skived?
must we have skived?
must you have skived?
must they have skived? 	must I have been skiving?
must you have been skiving?
must he have been skiving?
must we have been skiving?
must you have been skiving?
must they have been skiving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not skive?
must you not skive?
must he not skive?
must we not skive?
must you not skive?
must they not skive? 	must I not be skiving?
must you not be skiving?
must he not be skiving?
must we not be skiving?
must you not be skiving?
must they not be skiving? 	must I not have skived?
must you not have skived?
must he not have skived?
must we not have skived?
must you not have skived?
must they not have skived? 	must I not have been skiving?
must you not have been skiving?
must he not have been skiving?
must we not have been skiving?
must you not have been skiving?
must they not have been skiving?