Context: Czech contains ten basic vowel phonemes, and three more found only in loanwords. They are /a/, /ɛ/, /ɪ/, /o/, and /u/, their long counterparts /aː/, /ɛː/, /iː/, /oː/ and /uː/, and three diphthongs, /ou̯/, /au̯/ and /ɛu̯/. The latter two diphthongs and the long /oː/ are exclusive to loanwords. Vowels are never reduced to schwa sounds when unstressed. Each word usually has primary stress on its first syllable, except for enclitics (minor, monosyllabic, unstressed syllables). In all words of more than two syllables, every odd-numbered syllable receives secondary stress. Stress is unrelated to vowel length, and the possibility of stressed short vowels and unstressed long vowels can be confusing to students whose native language combines the features (such as English).

Question: How many basic vowel phonemes does Czech contain?
Answer: ten

Question: Where are three additional vowel phonemes found in Czech?
Answer: loanwords

Question: What are vowel sounds never reduced to when unstressed?
Answer: schwa sounds

Question: What a few exceptions where is the primary word stress in Czech?
Answer: first syllable

Question: What is stress unrelated to in Czech?
Answer: vowel length

Question: How many basic vowel phonemes are in English?
Answer: Unanswerable

Question: In English, where are three more phonemes found?
Answer: Unanswerable

Question: What are exclusive to loanwords in English?
Answer: Unanswerable

Question: What are vowel sounds not reduced to when unstressed in English?
Answer: Unanswerable

Question: Where does each word usually have primary stress in English?
Answer: Unanswerable