Stem-Changing Verbs: o:ue

Stem-Changing Verbs: e:ie

Stem-changing verbs: e:i

Irregular Verbs: "estar, ir, dar"

"Ir a" + infinitive

"Acabar de" + infinitive

"Volver a" + infinitive

Ordinal Numbers

Months, Seasons, and Dates

Comparisons of Inequality

Comparisons of Equality

Superlatives