Form the perfect tense using the auxiliary verb 'haber' and a past participle. Irregular verbs in the perfect tense in Spanish The perfect tense is made of the verb 'haber' and a past participle.

This happens a lot with verbs, where past-tense forms can compete for acceptance and supremacy with language users. From our friends at Vocabulary.com, here are 10 verbs whose past tense can be ...