1 syllable:
-ling, ...ing, bing, bring, ching, cling, dhing, ding, dingue, djing, dring, fling, fring, g-string, ging, gring, gstring, hing, ing, jing, king, kling, kring, ling, lyng, ming, mingw, ning, ping, pring, qing, ring, ringe, schwing, shing, sing, singh, sling, springe, sting, string, swing, thing, thwing, ting, twing, wing, wring, xing, ying, zing

2 syllables:
airling, air spring, anqing, aswing, backswing, bedspring, beeswing, bee sting, beijing, birdwing, boinking, bow-string, bowstring, box spring, chang-ming, check-swing, checkstring, cheesewring, chongqing, coiling, coil spring, coldspring, daqing, day-spring, dayspring, deadwing, docstring, downswing, drawspring, drawstring, elle king, entryng, erving, estring, eyestring, fastspring, fenqing, first-string, fixed-wing, flopwing, fore-wing, forewing, fuqing, gas ring, gee-string, ginting, gin sling, goldring, growth ring, gull-wing, gullwing, hairspring, handspring, han ying, headspring, heartstring, hindwing, hot spring, inswing, jaime king, key ring, kuching, kwok-shing, lapwing, latchstring, leaf-spring, leaf spring, left-wing, leftwing, left wing, lifespring, lifestring, life ring, lockring, lustring, lutestring, mafeking, mainspring, manring, mei-ling, mixsingh, moodring, moonling, nose ring, offspring, outbring, outring, outspring, outswing, outwing, o ring, peking, pissing, plaything, prize ring, puking, purse string, qingming, real thing, restring, right-wing, rightwing, right wing, rum sling, sacring, seal ring, sea king, sexting, shaun king, shoestring, shoe string, slipstring, slip ring, snap ring, southing, speedring, spring, stoneking, substring, sun king, swing-wing, teespring, texting, unring, unstring, upspring, upswing, watchspring, wellspring, whole thing, wolfing, woodring, word string, xiaoping, yenching, yoldring, zhaoqing

3 syllables:
afroswing, anchor ring, anything, apron string, b.b. king, baseball swing, bastard wing, benzene ring, bird-on-the-wing, black is king, boxing ring, buck-and-wing, carole king, chia-ling, chicken wing, coffee ring, colouring, curtain ring, dereling, ding-a-ling, elden ring, everything, fairy ring, fiddlestring, frederking, gurjant singh, hardik singh, highland fling, houghton-le-spring, innerspring, interlingue, in full swing, joey king, kabir singh, lilly king, lilly singh, living thing, male offspring, milkha singh, mourning ring, multilingue, napkin ring, navel-string, nighttiming, nuzzling, one true king, on the wing, outlaw king, overking, overspring, piston ring, pretexting, ranveer singh, sandeep singh, second-string, signet ring, slinger ring, snorkeling, spiral spring, splattering, standard-wing, stomaching, storage ring, superstring, teething ring, thermal spring, tiger king, ting-a-ling, towel ring, turkey wing, udham singh, underwing, wedding ring, willenbring, worshiping, wrestling ring

4 syllables:
annual ring, apparaillyng, arijit singh, barbecued wing, bellyaching, buffalo wing, calorieking, engagement ring, female offspring, footsteps-of-spring, for anything, jesus is king, librarything, linguistic string, natural spring, printf format string, rakul preet singh, regina king, rotary-wing, rotary wing, spurious wing, vijender singh, you are my spring

5 syllables:
dark side of the ring, martin luther king, prettylittlething, rupinder pal singh, something/anything?, the scorpion king, where the crawdads sing

7 syllables:
the fellowship of the ring, vehicle-to-everything

8 syllables:
longest palindromic substring, research and analysis wing