be

almost
the course's almost exclusive concentration on grammar

not necessarily
The recording deal is not necessarily exclusive. The band can record material for other companies as well.

to
These products are exclusive to our outlets.

be
become
remain
keep sth
The owners of the golf club are determined to keep it exclusive.

extremely, fairly, very, etc.
a somewhat exclusive venue

racially, socially

be

mutually
The two options are not mutually exclusive (= you can have them both).

Exclusive is used with these nouns:
boutique, clientele, club, competence, concentration, contract, coverage, deal, distribution, distributor, district, emphasis, excerpt, focus, interview, jurisdiction, licence, occupation, partnership, photo, possession, prerogative, preview, privilege, province, reliance, report, resort, responsibility, restaurant, right, shop, story, suburb, use