must annihilate
Regular verb: annihilate - annihilated- annihilated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must annihilate
you must annihilate
she must annihilate
we must annihilate
you must annihilate
they must annihilate 	I must be annihilating
you must be annihilating
she must be annihilating
we must be annihilating
you must be annihilating
they must be annihilating	I must have annihilated
you must have annihilated
she must have annihilated
we must have annihilated
you must have annihilated
they must have annihilated	I must have been annihilating
you must have been annihilating
she must have been annihilating
we must have been annihilating
you must have been annihilating
they must have been annihilating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't annihilate
you mustn't annihilate
she mustn't annihilate
we mustn't annihilate
you mustn't annihilate
they mustn't annihilate 	I mustn't be annihilating
you mustn't be annihilating
she mustn't be annihilating
we mustn't be annihilating
you mustn't be annihilating
they mustn't be annihilating	I mustn't have annihilated
you mustn't have annihilated
she mustn't have annihilated
we mustn't have annihilated
you mustn't have annihilated
they mustn't have annihilated	I mustn't have been annihilating
you mustn't have been annihilating
she mustn't have been annihilating
we mustn't have been annihilating
you mustn't have been annihilating
they mustn't have been annihilating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I annihilate?
must you annihilate?
must she annihilate?
must we annihilate?
must you annihilate?
must they annihilate? 	must I be annihilating?
must you be annihilating?
must she be annihilating?
must we be annihilating?
must you be annihilating?
must they be annihilating? 	must I have annihilated?
must you have annihilated?
must she have annihilated?
must we have annihilated?
must you have annihilated?
must they have annihilated? 	must I have been annihilating?
must you have been annihilating?
must she have been annihilating?
must we have been annihilating?
must you have been annihilating?
must they have been annihilating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I annihilate?
mustn't you annihilate?
mustn't she annihilate?
mustn't we annihilate?
mustn't you annihilate?
mustn't they annihilate? 	mustn't I be annihilating?
mustn't you be annihilating?
mustn't she be annihilating?
mustn't we be annihilating?
mustn't you be annihilating?
mustn't they be annihilating? 	mustn't I have annihilated?
mustn't you have annihilated?
mustn't she have annihilated?
mustn't we have annihilated?
mustn't you have annihilated?
mustn't they have annihilated? 	mustn't I have been annihilating?
mustn't you have been annihilating?
mustn't she have been annihilating?
mustn't we have been annihilating?
mustn't you have been annihilating?
mustn't they have been annihilating?