Some Special Cases
The adverbs enough and not enough usually take a postmodifier position:
• Is that music loud enough?
• These shoes are not big enough.
• In a roomful of elderly people, you must remember to speak loudly enough.
(Notice, though, that when enough functions as an adjective, it can come before the noun:
• Did she give us enough time?
The adverb enough is often followed by an infinitive:
• She didn't run fast enough to win.
The adverb too comes before adjectives and other adverbs:
• She ran too fast.
• She works too quickly.
If too comes after the adverb it is probably a disjunct (meaning also) and is usually set off with a comma:
• Yasmin works hard. She works quickly, too.
The adverb too is often followed by an infinitive:
• She runs too slowly to enter this race.
Another common construction with the adverb too is too followed by a prepositional phrase — for + the object of the preposition — followed by an infinitive:
• This milk is too hot for a baby to drink