Prepositions, as we’ve discussed in previous entries, cause numerous problems. Here is one example which could potentially cause misunderstanding – and humour.
The correct sentence, ‘I go to work by bike’ means that you ride your bike to work. You do not go by car, or train. You pedal to work on a bicycle.
To say, ‘I go to work with my bike’, suggests that your bike is a travel partner or something you carry. You can go to work with your wife, or you can go to work with your briefcase. But saying, ‘I go to work with my bike’, implies that you are your bike cannot be separated, and whether you take the car, the bus or the train to work, you always take your bike with you!