Quantifiers

Too, too much, too many (demasiado, mucho, etc.) :

Use too, too much, too many to say "more than is good".
Use too + an adjective: I don't want to go out. I'm too tired.
Use too much + UNCOUNTABLE nouns: I have too much work.
Use too many + COUNTABLE nouns: I eat too many cakes and sweets.


Enough (bastante, suficiente):

Use enough before a noun to mean "all that is necessary": I don't drink enought water.
Use enough after an adjective: This dress isn't big enough.


A little, a few (un poco) :

Use a little / very little and a few / very few to talk about small quantities.
Use a little / very little with UNCOUNTABLE nouns: I drink very little coffee.
Use a few / very few with COUNTABLE nouns: Can you buy a few bananas?