must snipe
Regular verb: snipe - sniped- sniped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must snipe
you must snipe
she must snipe
we must snipe
you must snipe
they must snipe 	I must be sniping
you must be sniping
she must be sniping
we must be sniping
you must be sniping
they must be sniping	I must have sniped
you must have sniped
she must have sniped
we must have sniped
you must have sniped
they must have sniped	I must have been sniping
you must have been sniping
she must have been sniping
we must have been sniping
you must have been sniping
they must have been sniping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't snipe
you mustn't snipe
she mustn't snipe
we mustn't snipe
you mustn't snipe
they mustn't snipe 	I mustn't be sniping
you mustn't be sniping
she mustn't be sniping
we mustn't be sniping
you mustn't be sniping
they mustn't be sniping	I mustn't have sniped
you mustn't have sniped
she mustn't have sniped
we mustn't have sniped
you mustn't have sniped
they mustn't have sniped	I mustn't have been sniping
you mustn't have been sniping
she mustn't have been sniping
we mustn't have been sniping
you mustn't have been sniping
they mustn't have been sniping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I snipe?
must you snipe?
must she snipe?
must we snipe?
must you snipe?
must they snipe? 	must I be sniping?
must you be sniping?
must she be sniping?
must we be sniping?
must you be sniping?
must they be sniping? 	must I have sniped?
must you have sniped?
must she have sniped?
must we have sniped?
must you have sniped?
must they have sniped? 	must I have been sniping?
must you have been sniping?
must she have been sniping?
must we have been sniping?
must you have been sniping?
must they have been sniping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I snipe?
mustn't you snipe?
mustn't she snipe?
mustn't we snipe?
mustn't you snipe?
mustn't they snipe? 	mustn't I be sniping?
mustn't you be sniping?
mustn't she be sniping?
mustn't we be sniping?
mustn't you be sniping?
mustn't they be sniping? 	mustn't I have sniped?
mustn't you have sniped?
mustn't she have sniped?
mustn't we have sniped?
mustn't you have sniped?
mustn't they have sniped? 	mustn't I have been sniping?
mustn't you have been sniping?
mustn't she have been sniping?
mustn't we have been sniping?
mustn't you have been sniping?
mustn't they have been sniping?