not know if something is possible
Phrase
be unsure that one can do something
didn’t know if it was possible
At the start of ‘GoldenEye’, Wayne Michaels bungee-jumps 250 metres from the top of an enormous dam. He said he didn’t know if it was possible until he tried!
We're sorry but BraveSpeaking doesn't work properly without JavaScript enabled. Please enable it to continue.