彼はそこに行ったきり２度と帰ってこなかった。

he; him; his; boyfriend

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

there (place relatively near listener); there (place just mentioned); that place; then (of some incident just spoken of); that (of point just raised); you

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

to go; to move (in a direction or towards a specific location); to head (towards); to be transported (towards); to reach; to proceed; to take place; to pass through; to come and go; to walk; to die; to pass away; to do (in a specific way); to stream; to flow; to continue; to have an orgasm; to come; to cum; to trip; to get high; to have a drug-induced hallucination

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)

two

degree (angle, temperature, scale, etc.); counter for occurrences and times; strength (of alcohol)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

to return; to come home; to go home; to go back; to leave; to get home; to get to home plate