Common mistakes with prepositions "by"
1. We say by car, by bus, by plane etc. But do not use ‘the’, ‘my’ or ‘a’ when you use ‘by’. Instead use:
'On the plane.'
'In my car.'
'On a boat.’
2. We use by, not with, to talk about the action of something:
He got into the house by breaking the window. (action)
Not: … with breaking the window.
3. We use with, not by, to refer to the object or instrument that we use to do something!
He broke the window with a rock. (object/instrument)
Not: … by a rock.