Collocations for interested - adj.

appear, be, feel, look, seem, sound
become, get
She got very interested in politics.

remain
get sb
We need to get more young people interested in the sport.

keep sb
You need to keep your audience interested.

extremely, fairly, very, etc.
deeply, especially, greatly, intensely, keenly, most, particularly, passionately, seriously, terribly
If he's seriously interested in applying for the job, he'll do it.

genuinely, truly
increasingly
not at all, not in the least, not the least bit, not remotely
He's not in the least interested in girls.

not much, not very, only half
Carrie was only half interested in the conversation.

fairly, mildly, quite, vaguely
just
‘Why do you ask?’ ‘I'm just interested, that's all.’

enough, sufficiently (esp. BrE)
I wasn't interested enough in the argument to take sides one way or the other.

chiefly, mainly, primarily
long
Michael had long been interested in architecture.

always
I am always interested in how differently people can look at the same event.

still
no longer
potentially
apparently, reportedly
clearly, obviously
actively
As a landowner, he was actively interested in agricultural improvements.

in
She's always been interested in other people.

Interested is used with these nouns:
participant, party, reader, spectator