must tease
Regular verb: tease - teased- teased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must tease
you must tease
she must tease
we must tease
you must tease
they must tease 	I must be teasing
you must be teasing
she must be teasing
we must be teasing
you must be teasing
they must be teasing	I must have teased
you must have teased
she must have teased
we must have teased
you must have teased
they must have teased	I must have been teasing
you must have been teasing
she must have been teasing
we must have been teasing
you must have been teasing
they must have been teasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not tease
you must not tease
she must not tease
we must not tease
you must not tease
they must not tease 	I must not be teasing
you must not be teasing
she must not be teasing
we must not be teasing
you must not be teasing
they must not be teasing	I must not have teased
you must not have teased
she must not have teased
we must not have teased
you must not have teased
they must not have teased	I must not have been teasing
you must not have been teasing
she must not have been teasing
we must not have been teasing
you must not have been teasing
they must not have been teasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I tease?
must you tease?
must she tease?
must we tease?
must you tease?
must they tease? 	must I be teasing?
must you be teasing?
must she be teasing?
must we be teasing?
must you be teasing?
must they be teasing? 	must I have teased?
must you have teased?
must she have teased?
must we have teased?
must you have teased?
must they have teased? 	must I have been teasing?
must you have been teasing?
must she have been teasing?
must we have been teasing?
must you have been teasing?
must they have been teasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not tease?
must you not tease?
must she not tease?
must we not tease?
must you not tease?
must they not tease? 	must I not be teasing?
must you not be teasing?
must she not be teasing?
must we not be teasing?
must you not be teasing?
must they not be teasing? 	must I not have teased?
must you not have teased?
must she not have teased?
must we not have teased?
must you not have teased?
must they not have teased? 	must I not have been teasing?
must you not have been teasing?
must she not have been teasing?
must we not have been teasing?
must you not have been teasing?
must they not have been teasing?