He is a dangerous person; keep away from him.
This is a dangerous bridge.
That is a dangerous journey.
We argued him out of going on such a dangerous journey.
Except for the gun, he did not look very dangerous.
Being lost in the bush is very dangerous.
The fire is dangerous to us as it is so near.
The man is dangerous to his community.
This sort of punishment is applied only to nonviolent criminals who are not likely to be dangerous to the public.
The river is dangerous to bathe in.
The bridge is dangerous to cross.
It is/was+～+(for sb) to- v
It is dangerous to play with fire.
It is dangerous to walk on the thin ice.
It's dangerous to go too near the edge of the cliff.
It is dangerous for a girl to go out alone at night.
It is dangerous for you to do the work.
“Well, what more dangerous do you want?”He argues.
Charles Bright thought it dangerous to lay the cable in these conditions; and so he shouted to the men to stop the machine.