彼のぐちにはきりがない。

he; him; his; boyfriend

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

idle complaint; grumble; moha (ignorance, folly)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

end; finish; stop; bounds; limits; delivery date (of a futures contract); finale (of a noh song); end of an act (in joruri or kabuki); final performance of the day (in vaudeville); counter for slices (esp. thick slices); counter for cuts (e.g. fish, meat); only; just; since; after; remaining (in a particular state)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

nonexistent; not being (there); unpossessed; unowned; not had; unique; indicates negation, inexperience, unnecessariness or impossibility; not ...; to not be...; to have not ...