On the tube/in the tube/ by (the) tube

[vasea1977]

Hi
Please help, I need to know which of these sentences are correct and which are wrong. Can I also say "people in the tube"? Thank you.
1. Many people travel on the tube every day.
2. Many people travel in the tube every day.
3. Many people travel by tube every day.

 

[bhaisahab]

Hi
Please help, I need to know which of these sentences are correct and which are wrong. Can I also say "people in the tube"? Thank you.
1. Many people travel on the tube every day.
2. Many people travel in the tube every day.
3. Many people travel by tube every day.

They are all possible. For me, #1 is the most natural.

 

[emsr2d2]

I wouldn't use #2 at all.

 

[charliedeut]

I wouldn't use #2 at all.

I know this isn't real at all, but what would you call this?: http://1.bp.blogspot.com/_UoxBTxcUU2Q/TAYdKFBAesI/AAAAAAAAAb0/oDrnRyvgrrg/s400/Tubo+Futurama.jpg ;-)

 

[emsr2d2]

I know this isn't real at all, but what would you call this?: http://1.bp.blogspot.com/_UoxBTxcUU2Q/TAYdKFBAesI/AAAAAAAAAb0/oDrnRyvgrrg/s400/Tubo+Futurama.jpg ;-)

I have no idea! Some kind of sci-fi transport tube. I still wouldn't say that he was travelling "in the tube".