mustn't grumble
/ˈmʌs.n̩t ˈɡɹʌmbl̩/
should not complain about a situation.
“He mustn't grumble about the long wait outside.”Add to my deck
/ˈmʌs.n̩t ˈɡɹʌmbl̩/
should not complain about a situation.
“He mustn't grumble about the long wait outside.”Add to my deck