I missed you. I couldn't sleep last

I missed you. I couldn't sleep last night because i was thinking of you.
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ผลลัพธ์ (อังกฤษ) 2:

I missed you. I could not sleep last night because i was thinking of you.
You are right.

ผลลัพธ์ (อังกฤษ) 3:

I missed you. I couldn 't sleep last night because I was thinking of you.
you are?