are these sentences ok? Start a sentence with a capital letter and always capitalize "I".
1) "you are making a mess out of it".
if so, is "out of it" mandatory? Yes, if you want to mean 'You are doing it badly.' (But you can omit "out". You are making a mess of it.)
'You are making a mess.' means you are making the place dirty or untidy.
2) "how often/frequently does the bus comes/passes here?" First of all, 'pass' and 'come' are the correct verb forms.
The best verbs are 'come' and 'stop'. How often/frequently does the bus come/stop here?
can i use "passes here"? "pass" is not good; it strongly suggests passing by/going by but not stopping.
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