So vs. Such
This time, we're gonna shift our focus to more grammatically confusing pairs. I'm pretty sure you've come across these two. Shall we?
What Is Their Main Difference?
Both show the intensity and have the same meaning as 'very'. However, 'so' is an adverb, whereas, 'such' mainly functions as a determiner.
Differences
These two words have different grammatical functions. 'So' is an adverb of degree, showing the intensity of something. 'So' mainly precedes an adjective, an adverb, an adjective phrase, or an adverb phrase. Look at the examples below:
James glanced around and said: 'Dude. It all looks
The last time I saw him, she looked
'Such' is a determiner. It mainly precedes nouns and noun phrases and modifies them. Take a look at the examples below:
I'm thinking he's
Emily is
Similarities
They both show the degree of the intensity of the words they are modifying. Check out the following examples:
Oh my God! They are
I know you don't believe me, but you look
Are They Interchangeable?
As it is clear, these two can never be used interchangeably because they have different grammatical functions. Compare:
✓ I can't believe I actually fell for
X I can't believe I actually fell for
Here, this sentence is grammatically incorrect.