trudging, plodded, wading, toiling, drudging, muddling, tramping, trundling, sifting, trekking, breezing, stumbling, wending, lumbered, meandered, ambling, lugging, traipse, soldiered, labored, sauntering, navigating, grueling, sweated, zipping, churning, shuffling, poring, braving, rummaging, straggled, combing, riffling, exhausting, plowing, hurrying, bumbled, crawling, chugging, traversing, stretches, stuck, numbing, wallowing, enervating, yomp, cramming, boring, grind, marching, schlep, slinking, digging, bushwhacking, shoveling, striding, scrounging, hammering, strolling, persevered, puttering, wandering, bogged, pounding, heaving, winging, mired, sapping, muscling, leafing, dragging, venturing, lurching, pining, trooping, slaving, snaking, limps, scouring, inching, barreling, waddling, staggers, hopping, pedaling, mustering, scooting, sorting, cranking, trench warfare, chasing, mucking, trawling, sneaking, bivouacked, winding, piddled, couped, sallying, hunkered, getting, journeying, plodding, slog, toil, tramp, attrition, chewing, climb, drudgery, tedium, travelling, aggravation, battering, bouncing