Can somebody help me correct these sentences?

[scott833]

1) When will the boarding for this plane start?
2) What row is the boarding now?
3) They are currently boarding the passenger for the bus.
4) Another unoccupied bus will arrive after ther boarding for this bus is done.

[buggles]

1) When will the boarding for this plane start?
2) What row is the boarding now?
3) They are currently boarding the passenger for the bus.
4) Another unoccupied bus will arrive after ther boarding for this bus is done.

]1) When will boarding for this plane start?
2) What row is boarding now?
3) They are currently putting pasengers on the bus..
4) Another empty bus will arrive after these passengers have boarded this one.

buggles (not a teacher)