to come to an agreement―arrive at an agreement―come to an understanding―arrive at an understanding―come to terms
We have come to an agreement―arrived at an agreement―come to an understanding―arrived at an understanding―come to terms―An agreement has been arrived at.
We have arrived at an arrangement―come to an understanding―come to an agreement―come to terms.
to conclude an agreement through discussion
事前協議.
We are negotiating―under negotiation―with the other party.
The negotiations are at a standstill―at a dead set―at a dead-lock.
to arrange something by talking beforehand among two or more people
to have another discussion about an issue