ADJ

brief
live
running (= continuous)
She kept up a running commentary on the festivities
radio, television
listening to the radio commentary on the match

VERB + COMMENTARY

give, keep up, provide
listen to

COMMENTARY + NOUN

box
the reporters in the commentary box

PREP

~ on
BBC1 will give a live commentary on the election results

ADJ

detailed
critical
political, social

VERB + COMMENTARY

provide
The novel provides a powerful social commentary on post-war Germany

PREP

~ on

PHRASES

be a sad commentary (on sth) (= to reflect badly on sth)
The petty quarrels were a sad commentary on the state of the government