Grammar fix
serious problem
big problem
A situation or issue that is very important and difficult, and needs attention or action.
collocationB1common
Hear it in context
Notice where the phrase sounds natural.
Lack of clean water is a serious problem in many parts of the world.
If young people spend too much time on social media, it can become a serious problem for their mental health.
Fix the pattern
One small grammar move makes it sound right.
Not: We have a serious problem about the budget.
Say: We have a serious problem with the budget.
A problem WITH something, not 'about'.
Which sounds natural?
Tap the one a native speaker would say.
Natives say 'a serious problem'; the formal paraphrase is bloated.
Build natural chunks
Words that usually travel with it.
a serious problem with
- with
- cause
- face
- pose