halo guys . first i would like to introduce my self . my name is garisin you can call me gan garisin or whatever you like . when i was in a senior high school . my teacher mr. D. teach us english polite . example like this .
if you want to go to bathroom = as like i want to wash my hand (polite)
can ~> could
sorry ~> pardon .
please give me level english polite . i just want to learn english polite .

please help me guys .
and i want learning together with you guys .
thank before .
pardon me if i have some mistakes in this thread .

regards
garisin