all but is an expression meaning almost. See e.g. https://grammarist.com/usage/all-but/ https://grammarist.com/usage/all-but/. It's one of the most confusing En

all but is an expression meaning almost. See e.g. https://grammarist.com/usage/all-but/ https://grammarist.com/usage/all-but/. It's one of the most confusing English expressions I've encountered.