Grammar fix
go bad
food spoils
To become unpleasant or unsafe to eat or drink because it is no longer fresh.
phrasal verb
How oftenCommon
LevelB1
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
Use that chicken tonight before it goes bad.
I usually buy vegetables twice a week because if I buy too much at once, some of them go bad before I can use them.
Fix the pattern
One small grammar move makes it sound right.
Not: The milk has gone badly.
Say: The milk has gone bad.
Use the adjective 'bad' to describe the milk's condition, not the adverb 'badly'.
Don't confuse it
Other ways to say it
Food is no longer good to eat
Which foodAny foodOne food
go badYou're here · Any food or drink, UK and US. The safe default.
be offHow British people say it at the fridge: "This milk is off."go offThe usual British word: milk, meat, fish, leftovers. 'The milk's gone off.'go mouldyWhen you can see mould: bread, cheese, fruit. US spelling: moldy.go staleBread, cake, biscuits, crisps: dry or soft, not dangerous.Compare it
Where this one sits next to the phrases it gets mixed up with.