to escape (capture) by (a person) (especially by deceiving)

avoid; escape

to move, walk or act in an uncertain or hesitating manner, from either weakness or fear

stumble, stutter

(of levels, prices etc) to move up and down

vacillate, change

to say (something), speak, with a tendency to repeat the same sound or syllable, as in 'G-g-give me that b-b-book'

stutter in speech

to change one's mind often; be uncertain (in opinion etc)

go back and forth

to be, become, different

change

to move uncertainly or unsteadily; to hesitate

shift back and forth; be indecisive