Based on what 4 factors are monophthongs classified?
tongue backness, height of the tongue, lip rounding, and tenseness
How many monophthongs are there in English?
12 monophthongs including 7 short vowels and 5 long vowels
Name a front vowel and a back vowel, and give the word examples
front: /i/, /i:/, /e/ back /u/, /u:/, /a:/