SO, SUCH, TOO, ENOUGH

SO/SUCH

They are intensifiers.

SO means "tan" in Spanish and it can be found in the following structures

SO+ADJECTIVE
He's so cute! (¡Es tan guapo!)
It's so expensive! (¡Es tan caro!)

SO+ ADVERB
He dances so well! (¡Baila tan bien!)

SO MUCH/MANY + NOUN
We earned so much money! (¡Ganamos tanto dinero!)
There were so many people! (¡Había tanta gente!)

Take note: so + noun or verb
In modern spoken English, so can be found  before nouns and verbs.
That dress is so last year! (= That dress is last year’s fashion.)
I’m so going to shout at him when I see him! (so = really)

SUCH  means "tan" in Spanish and it goes before nouns or adjectives. 

You need to write A/AN if the noun is singular

It's such a nice day!! (¡Hace un día tan bonito!)
It's such an amazing story! (¡Es una historia tan extraordinaria!)

If the noun is plural or uncountable A/AN mustn't be used
I't such beautiful weather! ("weather" is uncountable. ¡Hace un tiempo tan bueno!)
They are such nice children! ("children" is plural. ¡Son unos niños tan buenos!)

IMPORTANT!!

SO/SUCH ... THAT..... to express CAUSE and EFFECT

So and such are used with a that clause to express cause and effect (or reason and result)

She felt so bad that she started to cry.
They had such a good time that they said they’d  go again.

That introduces the result. But in informal English, we sometimes leave it out.

It was such a good film (that) he saw it twice.
There were so many restaurants (that) they didn’t know which one to go to.

TOO and ENOUGH

TOO + ADJECTIVES

It's too expensive (¡Es demasiado caro!)

TOO+ ADVERBS

He ran too fast! (¡Corrió demasiado rápido!)

TOO MUCH/TOO MANY + NOUNS

He has too much money (Tiene demasiado dinero)

She has too many cars (Tiene demasiados coches)

ENOUGH+ NOUN

I have enough money (tengo suficiente dinero)

ADJECTIVE+ ENOUGH

It's not big enough! (no es lo bastante/suficientemente grande)

Sentences with too/enough are sometimes followed by to + verb infinitive (para...)

She’s definitely smart enough to become director.
There aren’t enough players to make a team.
It's too late to apologize
It's too early to start work