We often say "How long does it take you to travel from Melbourne to Sydney by train?", we know the beginning & the end.
But what if we say "How long does it take you to watch TV?". It doesn't have the beginning & the end.
Also, can we say:
How long does it take you to wash dishes?
How long does it take you to play chess?...
I knew 1 textbook say "How long does it take you to cook dinner?"
So, do you native often say "How long does it take you to watch TV?"
Note:
I have not problem with dummy "it". That was the typo error. My problem is that can we use that structure for phrases like "wash dishes", "play chess", "watch TV", etc which don't have a clear beginning & the end as "go from 1 place to another"