We have a responsibility to use resources effectively.
資源は効率的に使わねばならない
We have a wide [large, big] choice of books.
当店は本の品ぞろえが豊富です
We have bad [severe, good] weather.
天気が悪い[過酷だ,よい]
We have been friends (ever) since college [then, that time].
我々は大学[その時]からの友人だ
We have concern regarding the quality of the education.
教育の質に関心を持つ
We have decided to put it behind us.
それを忘れることにした
We have discussed this in chapter 8.
この点は第8章で論じた
We have enough time [time enough].
十分時間がある(◆enoughの後置は通例((やや古)))
We have enough to give everyone a drink.
飲み物は皆さんに1杯ずつ行き渡るだけは用意しています
We have every warrant for believing him.
彼を信じる理由は十分ある