must escalate
Regular verb: escalate - escalated- escalated

Affirmation 	
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I must escalate
you must escalate
she must escalate
we must escalate
you must escalate
they must escalate 	I must be escalating
you must be escalating
she must be escalating
we must be escalating
you must be escalating
they must be escalating	I must have escalated
you must have escalated
she must have escalated
we must have escalated
you must have escalated
they must have escalated	I must have been escalating
you must have been escalating
she must have been escalating
we must have been escalating
you must have been escalating
they must have been escalating	

Negation 	
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I mustn't escalate
you mustn't escalate
she mustn't escalate
we mustn't escalate
you mustn't escalate
they mustn't escalate 	I mustn't be escalating
you mustn't be escalating
she mustn't be escalating
we mustn't be escalating
you mustn't be escalating
they mustn't be escalating	I mustn't have escalated
you mustn't have escalated
she mustn't have escalated
we mustn't have escalated
you mustn't have escalated
they mustn't have escalated	I mustn't have been escalating
you mustn't have been escalating
she mustn't have been escalating
we mustn't have been escalating
you mustn't have been escalating
they mustn't have been escalating	

Interrogative form 	
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must I escalate?
must you escalate?
must she escalate?
must we escalate?
must you escalate?
must they escalate? 	must I be escalating?
must you be escalating?
must she be escalating?
must we be escalating?
must you be escalating?
must they be escalating? 	must I have escalated?
must you have escalated?
must she have escalated?
must we have escalated?
must you have escalated?
must they have escalated? 	must I have been escalating?
must you have been escalating?
must she have been escalating?
must we have been escalating?
must you have been escalating?
must they have been escalating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I escalate?
mustn't you escalate?
mustn't she escalate?
mustn't we escalate?
mustn't you escalate?
mustn't they escalate? 	mustn't I be escalating?
mustn't you be escalating?
mustn't she be escalating?
mustn't we be escalating?
mustn't you be escalating?
mustn't they be escalating? 	mustn't I have escalated?
mustn't you have escalated?
mustn't she have escalated?
mustn't we have escalated?
mustn't you have escalated?
mustn't they have escalated? 	mustn't I have been escalating?
mustn't you have been escalating?
mustn't she have been escalating?
mustn't we have been escalating?
mustn't you have been escalating?
mustn't they have been escalating?