有 yǒu means to have . This is the only verb whose negative form is 没有 méiyǒu not have . 不 bù not is not used with 有 y ǒ u .
The Chinese word 有 y ǒ u to have is not used when translating an English past participle. In other words, 有 y ǒ u to have is not used when saying ‘I have done my work’.