Question

simple present tense (ubahlah ke bentuk negatif dan pertannyaan)
(+) a commuter train runs every 15 minutes, buses also come from different directions.
(-) ....
(?) ....

Answer 1

(-) a commuter train doesn't run every 15 minutes, buses also don't come fromdifferent direction. 
(?) Does a commuter train run every 15 minutes and do buses also come from different direction ?

Answer 2

(-) a commuter train doesn't run every 15 minutes, buses also don't come from different directions
(?) does a commuter train run every 15 minutes, do buses also come from different directions?
sorry if my answer is wrong