Below are some korean expressions useful for teaching beginners.
Please take a note and use if needed.
Hello : Ahn Nyoung Hah Sae Yo
Repeat after me: Ta Ra Hah Sae Yo
Can't you hear me ? : Ahn Dul Li Na Yo ?
Do you understand me ? : Yi Hae Hat Na Yo ?
Book : Chaek
Do you have the book ? : Chaek It Seo Yo ?
Wait a sec : Jam Khan Mhan Yo
I'll call you again : Da Shi Jeon Hwa Hal Kae Yo
If you need more,
please leave a comment in english. I'll add it too.
Thanks !
noted