Note 10.2 — SIN QUERER

Sí. The affirmative adverb sí is much used to intensify statements, or to repeat the idea contained in a preceding statement. It is equivalent to 'indeed,' 'surely,' 'of course,' etc., or to the English auxiliary verbs used in repetitions; for instance in "I have not gone to town but he has," the verb 'has' may be rendered by sí.