Introduction to long vowels > Pronounce long i > Introduction to other vowels > Pronounce oi sound
long i /ɑɪ/ — oi sound /ɔɪ/ minimal pairs
1. aisle — oil
2. buy — boy
3. file — foil
4. kind — coined
5. lighter — loiter
6.pies — poise
7. pint — point
8. sigh — soy
9. tie — toy
10. vice — voice