Student or Learner
I'm reading Cambridge Objective First (FCE), I have faced an expression which is not familiar to me!
Unit 5 (Listening part): "At first, I noticed that it sort of shook but it started to go down."
or in the other part: "It sort of jumped out at me."
Generally after "sort of" we have noun or -ing form.
Could I ask you to describe more about these expressions.