Italian verb tenses
Hello everyone. I am learning italian by myself so I am finding a bit of trouble at the conjugation of the verbs. I downloaded an application recently for studying the verb tenses only to find strange tenses, I don't think they exist in english language as far as i know.For example, the verb baciare for kiss is conjugated in these strange tenses as baciavo (imperfect), baciai (past absolute), avio bacciato (future perfect) and ebbi baciato (past anterior). I never heard of these tenses before so if anyone can help me with the meaning of these conjugations and tenses would be great. Thank you