Los Sanfermines: affirmative imperative (-e), possessive adjectives

To make a noun plural, add -s if it ends in a vowel and -es if it ends in a consonant. [s] sounds like 'siempre', [z] sounds like 'empezar', [ci] sounds like 'principio' and [ce] sounds like 'entonces'. To say ‘you do something to yourself’, use 'te' before the verb, and 'me' to say 'I do something to myself’. When talking to somebody familiar to you (tú) with the affirmative imperative with -er verbs, use the ending -e. San Fermín (or San Fermines) is a week-long celebration held annually in Pamplona that involves running with bulls.