What are the differences between "byli" and "byly" in pronunciation?
What are the differences between "byli" and "byly" in pronunciation?

If both have same pronunciation, how can the listener distinguish them?

Question

What are the differences between "byli" and "byly" in pronunciation?
What are the differences between "byli" and "byly" in pronunciation?

If both have same pronunciation, how can the listener distinguish them?

Answer

The difference is clear based on the context, not the pronunciation. This is also the same case with French verbs.  The "i" and "y" are pronounced exactly the same in Czech.