must lever
Regular verb: lever - levered- levered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lever
you must lever
she must lever
we must lever
you must lever
they must lever 	I must be levering
you must be levering
she must be levering
we must be levering
you must be levering
they must be levering	I must have levered
you must have levered
she must have levered
we must have levered
you must have levered
they must have levered	I must have been levering
you must have been levering
she must have been levering
we must have been levering
you must have been levering
they must have been levering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't lever
you mustn't lever
she mustn't lever
we mustn't lever
you mustn't lever
they mustn't lever 	I mustn't be levering
you mustn't be levering
she mustn't be levering
we mustn't be levering
you mustn't be levering
they mustn't be levering	I mustn't have levered
you mustn't have levered
she mustn't have levered
we mustn't have levered
you mustn't have levered
they mustn't have levered	I mustn't have been levering
you mustn't have been levering
she mustn't have been levering
we mustn't have been levering
you mustn't have been levering
they mustn't have been levering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lever?
must you lever?
must she lever?
must we lever?
must you lever?
must they lever? 	must I be levering?
must you be levering?
must she be levering?
must we be levering?
must you be levering?
must they be levering? 	must I have levered?
must you have levered?
must she have levered?
must we have levered?
must you have levered?
must they have levered? 	must I have been levering?
must you have been levering?
must she have been levering?
must we have been levering?
must you have been levering?
must they have been levering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I lever?
mustn't you lever?
mustn't she lever?
mustn't we lever?
mustn't you lever?
mustn't they lever? 	mustn't I be levering?
mustn't you be levering?
mustn't she be levering?
mustn't we be levering?
mustn't you be levering?
mustn't they be levering? 	mustn't I have levered?
mustn't you have levered?
mustn't she have levered?
mustn't we have levered?
mustn't you have levered?
mustn't they have levered? 	mustn't I have been levering?
mustn't you have been levering?
mustn't she have been levering?
mustn't we have been levering?
mustn't you have been levering?
mustn't they have been levering?