I can risk you can risk he can risk we can risk you can risk they can risk
V-ing form
I can be risking you can be risking he can be risking we can be risking you can be risking they can be risking
Perfect
I can have risked you can have risked he can have risked we can have risked you can have risked they can have risked
V-ing perfect
I can have been risking you can have been risking he can have been risking we can have been risking you can have been risking they can have been risking
Negation
Simple form
I can't risk you can't risk he can't risk we can't risk you can't risk they can't risk
V-ing form
I can't be risking you can't be risking he can't be risking we can't be risking you can't be risking they can't be risking
Perfect
I can't have risked you can't have risked he can't have risked we can't have risked you can't have risked they can't have risked
V-ing perfect
I can't have been risking you can't have been risking he can't have been risking we can't have been risking you can't have been risking they can't have been risking
Interrogative form
Simple form
can I risk? can you risk? can he risk? can we risk? can you risk? can they risk?
V-ing form
can I be risking? can you be risking? can he be risking? can we be risking? can you be risking? can they be risking?
Perfect
can I have risked? can you have risked? can he have risked? can we have risked? can you have risked? can they have risked?
V-ing perfect
can I have been risking? can you have been risking? can he have been risking? can we have been risking? can you have been risking? can they have been risking?
Interro-negative form
Simple form
can't I risk? can't you risk? can't he risk? can't we risk? can't you risk? can't they risk?
V-ing form
can't I be risking? can't you be risking? can't he be risking? can't we be risking? can't you be risking? can't they be risking?
Perfect
can't I have risked? can't you have risked? can't he have risked? can't we have risked? can't you have risked? can't they have risked?
V-ing perfect
can't I have been risking? can't you have been risking? can't he have been risking? can't we have been risking? can't you have been risking? can't they have been risking?