In the following sentences (examples from Rosetta Stone):
- Ils payent avec des pièces.
- Elle paye par chèque.
- Il paye par carte de crédit.
- Je paye en espèces.
The first uses avec
, the second and third use par
, and the fourth uses en
. All of them refer to the method of payment but for me it looks like it is fine to replace one with another and also I don't understand how I can use them apart correctly.
So why is the preposition different depending on each method of payment?
And how can I decide which preposition to use if I don't know it in advance?