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able

ablea‧ble S1 W1 J1 /ˈeɪbəl/ []  1 be able to do something (能力として) <…>することができるI’ve always wanted to be able to speak Japanese. 常々日本語を話せるようになりたいと思ってきた.He wasn’t able to read the small print. 彼は小さい活字が読めなかった.Would you be able to recognise him if you saw him again? もう一度会えば彼だと見分けられますか. as soon as somebody is able (to)can be used without the following infinitive in this type of clause <人>ができるようになり次第The patient can start exercising again as soon as he is able. その患者は運動ができるようになればすぐに再開してもよい. if somebody is able (to)can be used without the following infinitive in this type of clause <人>ができるならSpeak to him in his own language, if you are able to. 彼が話す言葉で話しかけてみなさい, もしできるのなら. 2 be able to do something (状況的に) <…>することができるWill you be able to come? 来られますか.I won’t be able to see you today. 今日はお会いすることができません.Joe wouldn’t be able to make enough money from acting. ジョーは俳優業では十分に金を稼げないだろう. as soon as somebody is able (to) / if somebody is able (to)this is fairly formal. "As soon as you/he/she etc. can" is more common in ordinary English. Can be used without the following infinitive in this type of clause. <人>が可能になり次第[可能であれば]I visited her whenever I was able to. 可能なときはいつでも彼女を訪問した. 3 フォーマル 優秀な, 有能なHe’s one of our most able students. 彼は我が校で最も優秀な生徒の一人だ.my able assistant 私の有能なアシスタント →  capable1With verbs of perception (e.g. see, hear, smell ) and verbs of the mind (e.g. understand, decide, remember ), we usually use can, can’t, etc.see, hear, smell などの知覚動詞や understand, decide, remember など思考・認識を表す動詞の場合は, be able to ではなく通例 can can’t を用いるThere are so many places to visit in London that I can’t decide (×I’m not able to decide) where to go. ロンドンは見物する場所がたくさんありすぎて,どこに行ったらよいか決められない.
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