must risk
Regular verb: risk - risked- risked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must risk
you must risk
she must risk
we must risk
you must risk
they must risk 	I must be risking
you must be risking
she must be risking
we must be risking
you must be risking
they must be risking	I must have risked
you must have risked
she must have risked
we must have risked
you must have risked
they must have risked	I must have been risking
you must have been risking
she must have been risking
we must have been risking
you must have been risking
they must have been risking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not risk
you must not risk
she must not risk
we must not risk
you must not risk
they must not risk 	I must not be risking
you must not be risking
she must not be risking
we must not be risking
you must not be risking
they must not be risking	I must not have risked
you must not have risked
she must not have risked
we must not have risked
you must not have risked
they must not have risked	I must not have been risking
you must not have been risking
she must not have been risking
we must not have been risking
you must not have been risking
they must not have been risking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I risk?
must you risk?
must she risk?
must we risk?
must you risk?
must they risk? 	must I be risking?
must you be risking?
must she be risking?
must we be risking?
must you be risking?
must they be risking? 	must I have risked?
must you have risked?
must she have risked?
must we have risked?
must you have risked?
must they have risked? 	must I have been risking?
must you have been risking?
must she have been risking?
must we have been risking?
must you have been risking?
must they have been risking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not risk?
must you not risk?
must she not risk?
must we not risk?
must you not risk?
must they not risk? 	must I not be risking?
must you not be risking?
must she not be risking?
must we not be risking?
must you not be risking?
must they not be risking? 	must I not have risked?
must you not have risked?
must she not have risked?
must we not have risked?
must you not have risked?
must they not have risked? 	must I not have been risking?
must you not have been risking?
must she not have been risking?
must we not have been risking?
must you not have been risking?
must they not have been risking?