___
___ empezar / comenzar a [+ inf]
empezar / comenzar a + infinitivo to start + gerund
Empezamos a comer antes de su llegada We started eating before he / she / you arrived
Ella no ha empezado a estudiar todavia She still has not started studying
Comenzamos a comer a las diez We start eating at ten
Also: empezar, comenzar