Types of vowels Vowels Adjacent tense/ lax vowel /iy/ /I/ Activities Minimal Word pairs with this distinction. Tense and lax /ey/ /Ɛ/ Minimal Word pairs Tense vowel /α/ Twister Tense vowel / Glide /w/ Lax vowels High front vowels Examples Bee /biy/ Me /miy/ Tree /triy/ Ray /rey/ Hot /hαt/ Clock /klαk/ Ma /mα/ Spa /spα/ Law Caught Boot /buwt/ Zoo /zuw/