have
The Italian word 'avere' is used to express possession or ownership, similar to the English word 'have'. It can also be used to form the present perfect tense in Italian, as in 'Ho mangiato una mela' (I have eaten an apple). However, unlike English, 'avere' is not used as an auxiliary verb in the past tense, where 'essere' is used instead.
I have an apple
In this example the verb 'avere' (to have) is used to indicate possession. 'Io ho' is the first person singular form meaning 'I have'. 'Una mela' means 'an apple'.
I need time
In this example 'ho bisogno di' translates to 'I need'. 'Tempo' means 'time'. The Italian verb 'avere' (to have) is used to express needs, where in English we would use the verb 'to need'.
They have a big house
This sentence uses 'hanno', which is the third person plural form of the verb 'avere' (to have), indicating possession. 'Una grande casa' translates to 'a big house'.