[General] Are they correct ? Please give comments.

[kyawwin]

(1) David didn't work as hard as Tom to always stand first in class.
(2) David didn't work as hard to always stand first as Tom.

 

[probus]

Both are incorrect. Both are ungrammatical and unnatural.

 

[kyawwin]

Would you please rewrite them?

 

[tedmc]

David didn't work as hard as Tom, so it was Tom who always came out first in class.
David doesn't work as hard as Tom, so it is Tom who always comes out first in class.

 

[Matthew Wai]

I would say 'ranked/ranks first', but I am not a teacher.

 

[kyawwin]

What about, 'Tom is always at the top of the class '? Is it correct?

 

[kyawwin]

Thank you.

 

[Matthew Wai]

What about, 'Tom is always at the top of the class '? Is it correct?

I consider it correct, but I am not a teacher.

Thank you.

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[tedmc]

I would say 'ranked/ranks first', but I am not a teacher.

You don't usually talk about 'rank' in the context of a class.

 

[Matthew Wai]

David didn't work as hard as Tom, so it was Tom who always came out first in class.

I think 'so it was Tom' can be omitted, but I am not a teacher.

 

[tedmc]

Yes, it can but it is there for emphasis.