Grammar fix
main concern
most important worry
the thing you are most worried or focused about in a situation
collocationB1common
Hear it in context
Notice where the phrase sounds natural.
My main concern right now is finding a new job.
When choosing a university, my main concern was the quality of the teaching staff.
Fix the pattern
One small grammar move makes it sound right.
Not: My main concern is about the cost.
Say: My main concern is the cost.
'My main concern is + noun' directly. ('I'm concerned ABOUT the cost' uses 'about', but 'concern is' doesn't.)
Which sounds natural?
Tap the one a native speaker would say.
'My main concern is' is the natural set phrase. 'The principal matter causing me apprehension' is absurdly formal.
Build natural chunks
Words that usually travel with it.
main concern
- my main concern
- is safety
- the main concern is
- raise concerns