Regular -ir verbs are characterized by the use of a standard set of endings. These endings are: yo (-o), tu (-es), ella, el, Usted (-e), nosotras, nosotros (-imos), vosotras, vosotros (-is), ellas, ellos, Ustedes (-en).
If the subject is we (nosotros/nosotras), conjugate by dropping the ending and add -amos, -emos, or -imos, depending on whether the verb is -ar, -er or -ir. If the subject is you-all ? informal (vosotros/vosotras), conjugate by dropping the ending and add -ais, -eis, or is.
? vosotros/ vosotras: if the verb ends in -er, the ending will be ?eis, and if the verb ends in ?ir, the ending will be ?is (vosotros/as comeis vs vosotros/as escribis).
Poder in the Indicative Present PronounSpanishEnglishTupuedesyou are able toElla / El / Ustedpuedes/he is able to, you (formal) are able toNosotras / Nosotrospodemoswe are able toVosotras / Vosotrospodeisyou (plural) are able to2 more rows
If the subject is you-all ? informal (vosotros/vosotras), conjugate by dropping the ending and add -ais, -eis, or is. If the subject is they (ellos/ellas) or you-all ? formal (ustedes), conjugate by dropping the ending and add -an (-ar verbs) or -en (-er and -ir verbs).