never
The Italian word 'mai' is used to denote 'never' or 'not ever' in English. You can use it in sentences to express something that didn't happen in the past or won't happen in the future. Typically, it's used in negative sentences. For instance, 'Non sono mai stato in Italia' means 'I have never been to Italy'.
I have never been there.
This sentence uses 'mai' in a negative sentence to express a concept similar to the English 'never'. 'Non', the negative negation word, typically appears before the verb, and 'mai' appears after.
Never do that.
This phrase is a command not to do something, using 'mai' to denote 'never'. It stresses that the recommended action should never be taken under any circumstances.
Never stop dreaming.
This phrase is often used in an inspirational context. It uses 'mai' (never) together with the negative 'non' to command someone to keep dreaming under all circumstances.