must amplify
Regular verb: amplify - amplified- amplified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must amplify
you must amplify
she must amplify
we must amplify
you must amplify
they must amplify 	I must be amplifying
you must be amplifying
she must be amplifying
we must be amplifying
you must be amplifying
they must be amplifying	I must have amplified
you must have amplified
she must have amplified
we must have amplified
you must have amplified
they must have amplified	I must have been amplifying
you must have been amplifying
she must have been amplifying
we must have been amplifying
you must have been amplifying
they must have been amplifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't amplify
you mustn't amplify
she mustn't amplify
we mustn't amplify
you mustn't amplify
they mustn't amplify 	I mustn't be amplifying
you mustn't be amplifying
she mustn't be amplifying
we mustn't be amplifying
you mustn't be amplifying
they mustn't be amplifying	I mustn't have amplified
you mustn't have amplified
she mustn't have amplified
we mustn't have amplified
you mustn't have amplified
they mustn't have amplified	I mustn't have been amplifying
you mustn't have been amplifying
she mustn't have been amplifying
we mustn't have been amplifying
you mustn't have been amplifying
they mustn't have been amplifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I amplify?
must you amplify?
must she amplify?
must we amplify?
must you amplify?
must they amplify? 	must I be amplifying?
must you be amplifying?
must she be amplifying?
must we be amplifying?
must you be amplifying?
must they be amplifying? 	must I have amplified?
must you have amplified?
must she have amplified?
must we have amplified?
must you have amplified?
must they have amplified? 	must I have been amplifying?
must you have been amplifying?
must she have been amplifying?
must we have been amplifying?
must you have been amplifying?
must they have been amplifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I amplify?
mustn't you amplify?
mustn't she amplify?
mustn't we amplify?
mustn't you amplify?
mustn't they amplify? 	mustn't I be amplifying?
mustn't you be amplifying?
mustn't she be amplifying?
mustn't we be amplifying?
mustn't you be amplifying?
mustn't they be amplifying? 	mustn't I have amplified?
mustn't you have amplified?
mustn't she have amplified?
mustn't we have amplified?
mustn't you have amplified?
mustn't they have amplified? 	mustn't I have been amplifying?
mustn't you have been amplifying?
mustn't she have been amplifying?
mustn't we have been amplifying?
mustn't you have been amplifying?
mustn't they have been amplifying?