Havíamos
Havíamos is not a standard or accepted form in modern Spanish. The correct spelling is habíamos, the first-person plural imperfect indicative of the auxiliary verb haber. This form is used to create the pluscuamperfecto (also called the pasado anterior in some contexts), indicating an action that had been completed before another past action.
In use, habíamos accompanies a past participle to express completed past actions. Examples include: Habíamos terminado
Spelling and orthography notes indicate that havíamos is a nonstandard misspelling. The h at the beginning
Etymology and morphology: habíamos comes from haber plus the imperfect ending -ábamos, with the stress on the