Some past participles are irregular ... They put it on the table. Have a look at the regular verbs in the perfect tense guide to find out when to use the perfect tense and how to form it with ...

It adds that some forms may have functioned as verbal participles in past eras of the language ... The academy points out that both the use of the regular and irregular forms are correct; however ...

To form the perfect tense, you need the correct person of the verb haber (to have) plus the past participle. The past participle is a word that often ends in ‘-ed’ in English like ‘played ...