Exact vs exactly

[tufguy]

"This sentence should exactly be same as the previous sentence".

"This sentence is exact the same as the previous one".

Please check. Do we need to use " Exact" only or "Exactly" can be used as well? What's the difference between both?

 

[tufguy]

How about this. "This sentence is exact same as the previous sentence". A native speaker said it.

 

[Rover_KE]

That's wrong, too.

You can use 'exact same', but followed by a noun.

'He wrote the exact same sentence as I did'.

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