thunder [n]
- Grollen [n]
complaint [n]
- Meckerei [f]
- Nörgelei [f]
criticize [v]
- brummen
- nörgeln
thunder [v]
- rollen
disagreement [v]
- sich sträuben
- murren
- protestieren
sound [v]
- grollen
- rumpeln

thunder [n]
- grondement [m]
complaint [n]
- bougonnement [m]
- grommellement [m]
- grognement [m]
- ronchonnement [m (informal)]
criticize [v]
- grommeler
thunder [v]
- gronder
disagreement [v]
- protester
- grogner
- grommeler
- ronchonner
- rouspéter [informal]
sound [v]
- grogner

thunder [n]
- rombo [m]
- brontolio [m]
complaint [n]
- lagnanza [f]
- lamentela [f]
criticize [v]
- brontolare
- bofonchiare
thunder [v]
- rimbombare
disagreement [v]
- protestare
- lagnarsi
- lamentarsi
- brontolare
- borbottare
sound [v]
- rombare
- brontolare

thunder [n]
- retumbo [m]
- rugido [m]
complaint [n]
- queja [f]
criticize [v]
- refunfuñar
- quejarse
thunder [v]
- retumbar
disagreement [v]
- protestar
- refunfuñar
- quejarse
sound [v]
- rugir
- retumbar

thunder [n]
- gerommel [n]
complaint [n]
- gemor [n]
- gemopper [n]
- geknor [n]
criticize [v]
- morren
- mopperen
- grommen
- kankeren
- sakkeren [Belgium]
thunder [v]
- rommelen
- donderen
disagreement [v]
- tegenspartelen
- tegenpruttelen
- tegenstribbelen
- tegensputteren
- protesteren
- mopperen
sound [v]
- rommelen

thunder [n]
- mullrande [n]
complaint [n]
- knot [n]
- knorr [n]
criticize [v]
- knota
- klaga
- knorra
- muttra
thunder [v]
- mullra
disagreement [v]
- knota
- klaga
- muttra
sound [v]
- mullra
- morra

thunder [n]
- estrondo [m]
- retumbo [m]
complaint [n]
- queixa [f]
- lamentação [f]
- lamúria [f]
criticize [v]
- resmungar
- queixar-se
- reclamar
thunder [v]
- retumbar
disagreement [v]
- protestar
- reclamar
- resmungar
- queixar-se
- relutar
sound [v]
- ribombar
- retumbar

murmur [n]
- complaint
- mumble
- mutter
- plaint
- susurration
- whimper
- whispering
murmur [v]
- complain
- mumble
- mutter
- rumble

Present participle; Past participle
- grumbling
- grumbled
Present
- grumble
- grumble
- grumbles
- grumble
- grumble
- grumble
Past
- grumbled
- grumbled
- grumbled
- grumbled
- grumbled
- grumbled
Future
- will grumble
- will grumble
- will grumble
- will grumble
- will grumble
- will grumble
Present conditional
- would grumble
- would grumble
- would grumble
- would grumble
- would grumble
- would grumble
Present Perfect
- have grumbled
- have grumbled
- has grumbled
- have grumbled
- have grumbled
- have grumbled
Past Perfect
- had grumbled
- had grumbled
- had grumbled
- had grumbled
- had grumbled
- had grumbled
Future Perfect
- will have grumbled
- will have grumbled
- will have grumbled
- will have grumbled
- will have grumbled
- will have grumbled
Past conditional
- would have grumbled
- would have grumbled
- would have grumbled
- would have grumbled
- would have grumbled
- would have grumbled
Imperative
- -
- grumble
- -
- -
- -
- -