There's nothing I can do about it because it's a science experiment.
가 되겠네요~ ^-^

I was afraid he did not remember me.

I was afraid that he don't remember me.

I was worried(or afraid) that he won't remember me. (주어가 He니까 don't가 아니라 doesn't, wasn't가 아니라 won't로 해야해요^0^)

I'm afraid about he don't remember about me.

I was afraid that he doesn't remember me.

If there's something wrong, please make a correction.

Please make a correction when you see something wrong.

If something is wrong, give a correction.

If there is something wrong, it is good to correct them.

Correct me if there is anything wrong.

I looked at the ceiling I think the best is good posture.

I think the sleeping posture of looking at the ceiling is the best.

I think sleeping while looking at the ceiling is the best.

As far as I am concerned, a sleeping posture like looking at the ceiling is highly recommended.

Once you've lowering the price to as much as possible.
And it will be sent asking the new time.
When will this autumn be shipped when the confirmation fabric?
By default, the sample until the confirmation shall not enter the operation.
The part to be improved in order for the future.