Argentine cartoonist
Maitena Burundarena 
has convinced me that
I must learn the
pronoun "vos"
(so beloved among
Southern Coners and
Costa Ricans).
Why have ONE
(the pronoun "tú" clearly
needed company) when
you can have TWO?
beats stem-changing irregulars...
Aaaaah...decís...tenés...esperá.
