VERBS
- be, feel, look, seem, sound
- become, get, grow
- remain
ADV
- deeply, especially, extremely, genuinely, greatly, particularly, really, seriously, very
- increasingly
- a bit, a little, quite, rather, slightly, somewhat
- (not) unduly
- She was not unduly concerned by the prospect of managing on her own
- naturally
- rightly
- simply
PREP
- about/at/by/over
- Doctors are concerned at the prospect of heart patients having to wait up to a year for surgery
- for
- We are now deeply concerned for his safety
ADV
- especially, particularly, specifically
- entirely, exclusively, solely
- centrally, chiefly, essentially, largely, mainly, mostly, predominantly, primarily, principally
- Mathematics is concerned essentially with understanding abstract concepts
- closely, directly, intimately
PREP
- with
- Social anthropology is centrally concerned with the diversity of culture