to be in charge of or control something
estar a cargo de algo o controlarlo (estar a cargo de algo o controlarlo)
"He was at the helm of the company when it became successful."
"Él estaba a cargo de la empresa cuando se volvió exitosa." (Él estaba **a cargo** de la empresa cuando se volvió exitosa.)
a person who wakes up or arrives early
to be fair and positive in difficult situations
extremely tired and almost falling asleep
an exact or equivalent match in value or amount
to complete a task or promise as planned
to gradually stop using or providing something