This is the 10229th most frequent Polish word.
byłby
"Byłby" means "he would be" in English.
Here, 'byłby' is used in a conditional sentence to express a hypothetical scenario.
Gdyby miał więcej czasu, byłby szczęśliwszy.
If he had more time, he would be happier.
In this case, 'byłby' reflects a speculation or opinion about someone's potential state or role.
Myślę, że byłby dobrym nauczycielem.
I think he would be a good teacher.
This usage of 'byłby' is part of expressing an unreal past condition that prevented a different outcome.