Haber is irregular in El presente:
|él / ella / Ud.||ha / hay|
|vosotros / vosotras
|ellos / ellas / Uds.||han|
Note that in El Presente the 3rd person of singular of haber has two forms, ha and hay. Hay is an impersonal form used on its own to express there is /are.
Read and listen to these examples:
The full set of six forms is used with the past participle of a second verb to form another tense, El Pretérito Perfecto. For example: