Words combination: "reason ... because" (Incorrect)

While studying English I found this website about “Common English mistakes” from somebody`s website on the internet which does not include any grammar explanations/an English grammar link as of why this should be the case.
I am again here asking for help :0)

There are two “wrong” sentences, which examples include the words “reason” and “because” shown as wrong and honestly I use them myself in the same way. If someone could please help me out by including a grammar point of view and/or suggest me a useful link that might bring me grammar light on this subject, I will appreciated it.

  1. “reason” … “because” is not correct. Say “reason” … “that”

Wrong : The “reason” I came late was “because” I overslept…

Right : The “reason” I came late was “that” I overslept.

Wrong : The “reason” that he makes poor grades is “because” of his poor study habits.

Right : The reason that ( or why ) he makes poor grades is his poor study habits.

God Bless you all.

Hello Cisco,

“Because” means "for the reason that:

  1. He missed the bus because he was late =
  2. He missed the bus [for the reason that] he was late.

If we say:

  1. The reason that he was late was because he missed the bus.

we are saying:

  1. The reason that he was late was [for the reason that] he missed the bus.

which in effect presents us with the reason for the reason, not the reason itself.

Best wishes,


MrPedantic, Very well explained, it helped me to thoroughly understand the whole concept of the meaning, I trully appreciate you kind assistance. God Bless you.

You’re welcome!

I hope you have a good Tuesday,