What's the difference in the meaning between "you could say" and "you would say"? when something is in specific context and If that (something) is usual, we use would instead of could? I'm not sure but I think "you would say" is used to speculate, imagin something or instead of may/might and "you could say" is used to refer the possibility of happening something or to give suggestion. I'm quite a bit stuck in the meaning of "you would say", could you please interpret its meaning and in which situations or context it's ("you would say") used?
For some example:
1.You would say "I wished I had been back..." in a suitable context. 2.If you never drink a cup of tea in the morning, you would say "I never drink a cup of tea in the morning" 3.If you Speak English well, you would say "I'm a native speaker of English."