Have is used with some pronouns and plural nouns:
'I have a great English teacher.'
'You have toothpaste on your chin.'
'We have a meeting at 12.'
'Nurses have a difficult job.'
hasHas is used with the third person singular. For example:
'She has a great personality.'
'He has a new haircut.'
'The washing machine has a leak in it'.
'It has a hole near the door.'