Preposition: on

• idea: And I've begun work in earnest on a new picture book, since my editor was so keen on the idea last week.

Preposition: as

• mustard: We feed him once a day, and not too much then, so that he is always as keen as mustard.

Modifies a noun

• gardener: I'm a keen gardener; how will the trees affect me?

• sportsman: Chris Chris, a keen sportsman, collided with a tree whilst snow boarding.

• golfer: He gained Blues for Cricket and Hockey at Cambridge and remains a keen golfer and squash player.

• walker: Keen walkers may wish to take the 5 mile walk along the Coast to Branscombe taking in views from Start Point to Portland.

• supporter: Beverley and East Riding is a keen supporter of the LTA campaign Play Tennis 2006.

• cyclist: A keen cyclist herself, Councilor Parker continued: " Cycling is often the quickest way to get around.

Modifying Another Word

• particularly: At present we are particularly keen to hear from any keyboard player who could help us with the children's singing.

• especially: Tony Hams: We are especially keen to engage more effectively with young people.

• very: The second supplier was very keen to do the job.

• overly: The overly keen that said yes were dropped from our list!

Infinitive complement

• hear: We were also keen to hear how people where keeping their bins clean.

• recruit: HATII is keen to recruit research students from within or outwith the university for PhD study.

• encourage: Graham was very keen to encourage songwriters to write more indigenous Romanian worship songs.

• emphasize: The State Department was keen to emphasize that the visits were unofficial.

• promote: The forum is keen to promote the positive advantages identified by people on the ground.

• ensure: They were certainly keen to ensure justice was seen to be done.

Used with adjective complement

• seem: He has gone off on holiday but seemed keen to help on his return.

• appear: There was a code of behavior among the students which said that they should not appear keen in front of their peers.