They lodged a formal complaint to the hospital about their ambulance service.
There have been numerous complaints against local government service.
official, formal, few, main, often-repeated, British, general, quiet, endless, vitriolic, many, further, total, pained, individual, similar, well-known, specific, original, constant, querulous, self-righteous, genuine, common, intra-marital, populist, numerous, principal, frequent, bitter, usual, widespread, overall, major, innumerable, occasional, outstanding, several.
receive, follow, investigate, have, make, get, hear, resolve, handle, lodge, answer, oversee, press, bring, produce, face, consider, determine, register, avoid, uphold, side.
S+complain about/of something
She got up at 11 a.m., still complaining of feeling tired.
The customer complained to the manager about the bad attitude of the clerk.
complain about the + n. (of)
lack, way, noise, state, cost, quality, price, government, size, service, time, loss, security, waiting, difficulty, weather, heat.
bitterly, loudly, mightily, vociferously, mildly, afterwards, repeatedly, publicly, effectively.
S + mutter about something
The sick boy muttered about not being able to play outside with his friends.
mutter about + N.
the unemployment, ingratitude, the ugly face, a neighborhood crime, storm for days, having to consult with his brother, his days in Paris.
mutter + adv.
darkly, thickly, hoarsely, ungraciously, quietly, angrily, fiercely, irritably, incoherently, softly, harshly, huskily, savagely, anxiously, grimly, gloomily, loudly, gruffly, aloud, abstractedly, rebelliously, acidly, silently, hopefully, crossly, impatiently, bitterly, defiantly, sourly.
S + moan about something
S + moan that + 子句
S + moan at somebody（英式英文，表示嘮叨）
Julia moaned about her boyfriend not taking her out enough.
His wife is always moaning at him.
My husband moaned that I spent too much money.
moan + adv.
softly, quietly, away, loudly, aloud, gently, hoarsely, helplessly.
moan about + N
the state of, declining standard, how fat she is, being in the group, the unemployment figures, the present, being picked up, the lack of.
moan at + n. each other, me, you, their team.
grumble (vi. / vt.)
S + grumble about/at something or somebody
S + grumble that + 子句
She grumbled about the hot weather all the way.
grumble about the + n.
disruption, weight, decision, unavailability, hardship, treatment.
grumble at + (det.) n.
me, grandmother, stiffness, her, nature, change.
grumble + adv.
loudly, incessantly, aloud, quietly, privately.
whine (vi. / vt.)
S + whine about something
The old man whined about his back pain.
whine about + (det.) n.
condition, cost, encroachment, memory, health.
whine + adv.
away, somewhere, softly, viciously, faintly, angrily.
S + bemoan the 名詞 of something
S + bemoan the fact that + 子句
The villager bemoaned the lack of medical resources.
She bemoaned the fact that she had not been born one hundred years earlier.
bemoan the n. (of)
fact, lack, absence, loss.