must twill
Regular verb: twill - twilled- twilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must twill
you must twill
she must twill
we must twill
you must twill
they must twill 	I must be twilling
you must be twilling
she must be twilling
we must be twilling
you must be twilling
they must be twilling	I must have twilled
you must have twilled
she must have twilled
we must have twilled
you must have twilled
they must have twilled	I must have been twilling
you must have been twilling
she must have been twilling
we must have been twilling
you must have been twilling
they must have been twilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not twill
you must not twill
she must not twill
we must not twill
you must not twill
they must not twill 	I must not be twilling
you must not be twilling
she must not be twilling
we must not be twilling
you must not be twilling
they must not be twilling	I must not have twilled
you must not have twilled
she must not have twilled
we must not have twilled
you must not have twilled
they must not have twilled	I must not have been twilling
you must not have been twilling
she must not have been twilling
we must not have been twilling
you must not have been twilling
they must not have been twilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I twill?
must you twill?
must she twill?
must we twill?
must you twill?
must they twill? 	must I be twilling?
must you be twilling?
must she be twilling?
must we be twilling?
must you be twilling?
must they be twilling? 	must I have twilled?
must you have twilled?
must she have twilled?
must we have twilled?
must you have twilled?
must they have twilled? 	must I have been twilling?
must you have been twilling?
must she have been twilling?
must we have been twilling?
must you have been twilling?
must they have been twilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not twill?
must you not twill?
must she not twill?
must we not twill?
must you not twill?
must they not twill? 	must I not be twilling?
must you not be twilling?
must she not be twilling?
must we not be twilling?
must you not be twilling?
must they not be twilling? 	must I not have twilled?
must you not have twilled?
must she not have twilled?
must we not have twilled?
must you not have twilled?
must they not have twilled? 	must I not have been twilling?
must you not have been twilling?
must she not have been twilling?
must we not have been twilling?
must you not have been twilling?
must they not have been twilling?