Object

• anything: This doesn't prove anything about religion, of course.

• truth: I had to prove the truth of what I said.

Adjective complement

• fatal: Minutes or even seconds being lost could prove fatal.

• successful: Place adverts in shop windows and local papers, consider a leaflet drop which is proving very successful at the moment.

Present participle complement

• devastate: Natural or man-made disasters can prove devastating for an unprepared business.

• tire: The line of rippling crags means you're in for a good deal of ascent and descent, which can prove rather tiring.

Adjective complement

• impossible: In practice, it proved impossible to make arrangements with some of them.

Used with why or when

• why: Scot Keith Armor proved just why he is a star of the future on his debut to the circuit.

Present participle complement

• irritate: The acting of all the four actors was generally fine, but the monotone voice of Lams proved irritating throughout the production.

Preposition: in

• court: Before 1858 the wills would have been proved in the local church courts.