must spurn
Regular verb: spurn - spurned- spurned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must spurn
you must spurn
he must spurn
we must spurn
you must spurn
they must spurn 	I must be spurning
you must be spurning
he must be spurning
we must be spurning
you must be spurning
they must be spurning	I must have spurned
you must have spurned
he must have spurned
we must have spurned
you must have spurned
they must have spurned	I must have been spurning
you must have been spurning
he must have been spurning
we must have been spurning
you must have been spurning
they must have been spurning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not spurn
you must not spurn
he must not spurn
we must not spurn
you must not spurn
they must not spurn 	I must not be spurning
you must not be spurning
he must not be spurning
we must not be spurning
you must not be spurning
they must not be spurning	I must not have spurned
you must not have spurned
he must not have spurned
we must not have spurned
you must not have spurned
they must not have spurned	I must not have been spurning
you must not have been spurning
he must not have been spurning
we must not have been spurning
you must not have been spurning
they must not have been spurning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I spurn?
must you spurn?
must he spurn?
must we spurn?
must you spurn?
must they spurn? 	must I be spurning?
must you be spurning?
must he be spurning?
must we be spurning?
must you be spurning?
must they be spurning? 	must I have spurned?
must you have spurned?
must he have spurned?
must we have spurned?
must you have spurned?
must they have spurned? 	must I have been spurning?
must you have been spurning?
must he have been spurning?
must we have been spurning?
must you have been spurning?
must they have been spurning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not spurn?
must you not spurn?
must he not spurn?
must we not spurn?
must you not spurn?
must they not spurn? 	must I not be spurning?
must you not be spurning?
must he not be spurning?
must we not be spurning?
must you not be spurning?
must they not be spurning? 	must I not have spurned?
must you not have spurned?
must he not have spurned?
must we not have spurned?
must you not have spurned?
must they not have spurned? 	must I not have been spurning?
must you not have been spurning?
must he not have been spurning?
must we not have been spurning?
must you not have been spurning?
must they not have been spurning?