［誤］He'll be here tomorrow from about seven o'clock.

・「～から」という時間に関して言う場合、"from"は単独で使えない。

［誤］He'll be here tomorrow from about seven o'clock.
［正］He'll be here tomorrow from about seven o'clock onward.
［誤］I work from 9 every day.
［正］I work from 9 to 6 every day.
［誤］I will only be working in the afternoons from now.
［正］I will only be working in the afternoons from now on.
［誤］I will only be working in the afternoons from today.
［正］I will only be working in the afternoons from today on.

・「～から」と時間に関して言う場合の言い方。
［正］He'll be here starting at 7:00.
［正］He'll be here as of 7:00.

・場所に関しては、"from"が単独で使える。
［正］We took the train from Osaka.

［誤］He'll be here tomorrow from about seven o'clock.の関連項目

• ⇒ in, on, atの使い分け
• ⇒ at school vs. in school
• ⇒ 時を表す前置詞
• ⇒ 場所を表す前置詞
• ⇒ He studied physics at the university.
• ⇒ Karen looked out the window.
• ⇒ We were sitting around the campfire.
• ⇒ the January before last
• ⇒ I never work on the weekend.
• ⇒ We met the spring of 2011.
• ⇒ around the world vs. all around the world
• ⇒ ［正］in the room ［誤］at the room
• ⇒ "on TV"と"on the TV"の違い
• ⇒ stay at the hotel ／ stay in the hotel