I must risk you must risk she must risk we must risk you must risk they must risk
V-ing form
I must be risking you must be risking she must be risking we must be risking you must be risking they must be risking
Perfect
I must have risked you must have risked she must have risked we must have risked you must have risked they must have risked
V-ing perfect
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
I mustn't risk you mustn't risk she mustn't risk we mustn't risk you mustn't risk they mustn't risk
V-ing form
I mustn't be risking you mustn't be risking she mustn't be risking we mustn't be risking you mustn't be risking they mustn't be risking
Perfect
I mustn't have risked you mustn't have risked she mustn't have risked we mustn't have risked you mustn't have risked they mustn't have risked
V-ing perfect
I mustn't have been risking you mustn't have been risking she mustn't have been risking we mustn't have been risking you mustn't have been risking they mustn't have been risking
Interrogative form
Simple form
must I risk? must you risk? must she risk? must we risk? must you risk? must they risk?
V-ing form
must I be risking? must you be risking? must she be risking? must we be risking? must you be risking? must they be risking?
Perfect
must I have risked? must you have risked? must she have risked? must we have risked? must you have risked? must they have risked?
V-ing perfect
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
mustn't I risk? mustn't you risk? mustn't she risk? mustn't we risk? mustn't you risk? mustn't they risk?
V-ing form
mustn't I be risking? mustn't you be risking? mustn't she be risking? mustn't we be risking? mustn't you be risking? mustn't they be risking?
Perfect
mustn't I have risked? mustn't you have risked? mustn't she have risked? mustn't we have risked? mustn't you have risked? mustn't they have risked?
V-ing perfect
mustn't I have been risking? mustn't you have been risking? mustn't she have been risking? mustn't we have been risking? mustn't you have been risking? mustn't they have been risking?