语法

ADJ wh

The 'uncertain' group

These adjectives indicate that someone is not sure whether something is the case, or whether something should be done.
We are really supported and encouraged to go into maths and physics but I'm not sure whether that's the same in other schools.
He was uncertain what his next move should be.
In the case of uncertain and unsure, the adjective is sometimes followed by a wh-to-inf clause.
The government is unsure what to do.
  • (not) certain
  • doubtful
  • dubious
  • sceptical
  • (not) sure
  • uncertain
  • unsure
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