Al principio dudó sobre contratarme, pero me alegra que me haya dado una oportunidad.At first he was doubtful about hiring me, but I'm glad that he gave me a chance.
Usted dudó sobre la veracidad de lo que dije porque no me conoce y cree que soy un mentiroso.You were doubtful about the truthfulness of what I said because you don't know me and think that I'm a liar.