Too and enough are used to talk about the quantity or size of something.

Look at the sentences below. What is the difference in meaning?

The dress is big enough.

The dress is not big enough.

The dress is too big.

Meaning of too and enough

We use ‘enough’ to show that size or quantity of something is suitable for the purpose.

The dress is big enough (the dress is the correct size to fit the person).

We use ‘not….. enough’ to show that quantity or size of something is not sufficient.

The dress is not big enough (the dress needs to be bigger to fit the person).

We use ‘too’ to show that there is a problem with the quantity or size of something.

The dress is too big (in this example, the dress needs to be smaller to fit the person).

Rules for using too and enough with nouns

Enough – ‘enough’ goes before countable and uncountable nouns.

There is enough food for the people at the party.

There are enough sandwiches for the people at the party.

Not….. enough – ‘not enough’ goes before countable and uncountable nouns.

There is not enough food for the people at the party.

There aren’t enough sandwiches for the people at the party.

Too much / too little – ‘too much / too little’ goes before uncountable nouns.

There is too much food for the people at the party.

There is too little food for the people at the party.

Too many / too few – ‘too many’ goes before countable nouns.

There are too many sandwiches for the people at the party.

There are too few sandwiches for the people at the party.

Rules for using too and enough with adverbs

Enough – ‘enough’ goes after the adverb.

My teacher speaks slowly enough for me to understand him.

Not….. enough – ‘not’ goes before the verb and adverb, ‘enough’ goes after the adverb.

My teacher doesn’t speak slowly enough for me to understand him.

Too – goes before the adverb.

My teacher speaks too quickly for me to understand him.

Rules for using too and enough with verbs

Enough – ‘enough’ goes after the verb.

I have studied enough today. Let’s go and watch a movie at the cinema!

Not….. enough – ‘not’ goes before the verb, ‘enough’ goes after the verb.

I haven’t studied enough today. I’m sorry I can’t go to the cinema.

Too much – goes after the verb.

I have studied too much today. I really need a break. Let’s go and watch a movie at the cinema!

Note: We don’t commonly use ‘too little’ with verbs, though it is possible.