4.28 'how' with other words

'How' can be combined with other words at the beginning of questions.

'How many' and 'how much' are used to ask what number of things there are or what amount of something there is.

'How many' is followed by a plural count noun.

'How much' is followed by an uncount noun.

'How many' and 'how much' can be used without a following noun when you do not need to make it clear what sort of thing you are talking about.

'How long' is used to ask about the length of a period of time.

'How long' is also used to ask questions about distance, although this use is less common.

'How far' is used in questions about distance and extent.

You can combine 'how' with an adjective when you are asking to what extent something has a particular quality or feature.