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 ...

Normally in the past tense, you do not need to worry about subject-verb agreement because you can conjugate most regular past tense verbs to the singular or plural by adding an -ed to the end of the ...

In this exercise, you'll see input verbs and model verbs. If you choose ring as your model verb, and then bring as your input verb, bring will conjugate the way that ring normally does.