If you have a rhotic accent, you pronounce the /r/ sound whenever the letter 'r' appears in a word, like in 'learn', 'better' and 'perfect'. North American accents are usually rhotic, and other ...
In fact, any letter representing a vowel sound can be pronounced as schwa. For example, the first vowel in the word 'connect' is a schwa sound but it's written with the letter 'o', and the second ...