Yes, just memorise the present tense conjugations of the verb "haber", and the past participles of the verbs ser and estar.

Yo he estado/sido

Tú has estado/sido

Él/ella/usted ha estado/sido

Nosotros hemos estado/sido

Vosotros habéis estado/sido

Ellos/ellas/ustedes han estado/sido

The personal pronouns in blue can be omitted. It's probably a good idea to memorise all the conjugations of the verb "haber" since it's used to form all the compound tenses.

Here's a link to a conjugation chart that will help you: http://www.123teachme.com/spanish_verb_conjugation/haber

¡Buena suerte!