Lend me your dictionary, because I forgot to take mine?

[Magic Dragon]

I'd appreciate it if someone would answer my question. Thanks in advance.

Is there something strange or awkward about the following sentence?

A--- Could you lend me your dictionary, because I forgot to take mine?

I think "Could you lend me your dictionary. I forgot to take mine?" is more common.

If A is strange or awkward, please tell me the reason.

[Natasha81]

Could you please lend me your dictionary. I forgot to bring mine.

[Iraqi]

As Natasha said, just with a question mark at the end of the first sentence- being a question.

[Magic Dragon]

--I used the wrong verb. Thank you for pointing it out.
But what I want to know is why "Could you please lend me your dictionary. I forgot to bring mine." is better, and "Could you please lend me your dictionary, because I forgot to bring mine." is not good.

I wonder expressions of request don't go with the reason for it. Please give it a second thought.
I think it's OK to say "I asked her to lend me her dictionary, because I forgot to bring mine."

[Natasha81]

I suppose, you do not need "Because", because you are starting a new sentence here after you have asked a question yourself. "Could you please lend me your dictionary? I forgot to bring mine."

If it is like this:

-Could you please lend me your dictionary?
-Yes, but why?
-Because I forgot to bring mine.

Then it's fine.

"I asked her to lend me her dictionary, because I forgot to bring mine" is all right, as you are explaining why you had to ask for a dictionary. Causative-consecutive relation.

[Magic Dragon]

Thank you very much.

[Natasha81]

Always welcome:)