受動態と能動態

能動態で書かれた文章は、受動態の文章より理解しやすいものです。受動態を能動態に替えることは複雑なことではありませんが、少し練習が必要です。以下の同等表で、受動態の動詞to beの時制が、能動態の主動詞の時制と常に同じであることをご覧下さい。能動態を使うためには、行動の主語を明確にする必要があります。

To Keep、能動態と受動態

時制 能動態 受動態 能動態の文章 相当する受動態の文章
単純現在 keep is kept I keep the butter in the fridge. The butter is kept in the fridge.
現在継続 is keeping is being kept John is keeping my house tidy. My house is being kept tidy.
単純過去 kept was kept Mary kept her schedule meticulously. Mary's schedule was kept meticulously.
過去継続 was keeping was being kept The theater was keeping a seat for you. A seat was being kept for you.
現在完了 have kept have been kept I have kept all your old letters. All your old letters have been kept.
過去完了 had kept had been kept He had kept up his training regimen for a month. His training regimen had been kept up for a month.
単純未来 will keep will be kept Mark will keep the ficus. The ficus will be kept.
条件付現在 would keep would be kept If you told me, I would keep your secret. If you told me, your secret would be kept.
条件付過去 would have kept would have been kept I would have kept your bicycle here if you had left it with me. Your bicycle would have been kept here if you had left it with me.
現在不定詞 to keep to be kept She wants to keep the book. The book wants to be kept.
完了不定詞 to have kept to have been kept Judy was happy to have kept the puppy. The puppy was happy to have been kept.
現在分詞と動名詞 keeping being kept I have a feeling that you may be keeping a secret. I have a feeling that a secret may be being kept.
完了分詞 having kept having been kept Having kept the bird in a cage for so long, Jade wasn't sure it could survive in the wild. The bird, having been kept in a cage for so long, might not survive in the wild.