There are variations in the way verbs form the past tense. They can be looked at in the following way: ...

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 ...