1.Thewords"sin"and"sing"bothshareasimilarendingsoundtotheChinesecharacter"恩".2.Thefirstword"sin"phoneticallysoundslike"en"withthetipofthetongueagainstthealveolarridge(theareabehindtheupperfrontteeth).3.Inthesecondword"sing",thetonguepositiondiffersfromthefirst.Thetipofthetonguepressesagainstthelowergumandthebackofthetonguepushesupagainstthesoftpalate.Themouthshouldbeopenedwide.