The
letters ed are added to verbs to change the tense (from present to
past). Sounds of -ed could changed because of phonetic symbol on its
word pronunciation. There are some rules:
- 1. change and be read as /Id/ -> when meet t/d
example: paint /peInt/ -> painted /peIntId/
2. change and be read as /t/ -> when meet unvoiced symbols, except 't'
example: stop /stop/ -> stopped /stopt/ | watch /wɒtʃ/ -> watched /wɒtʃt/
3. stay be read as /d/ -> when meet voiced symbol, except 'd' and vowels
example: open /ˈəʊp(ə)n/ -> opened /ˈəʊp(ə)nd/
The
letter s is added to words to make them plural. It is also added to
verbs to show present time (grammar rule) and added to noun to show
posession. Sounds of -s could change because of phonetic symbol on its
word pronunciation. There are some rules:
- 1. stay be read as /s/ -> when meet k, p, t, θ, f
example: keep /kIp/ -> keeps /kIps/
2. change and be read as /Iz/ -> when meet s, z, ʧ, ʤ, ʃ, ʒ
example: orange /ˈɒrɪndʒ/ -> oranges /ˈɒrɪn(d)ʒIz/
3. change and be read as /z/ -> when meet the rest of phonetic symbols (except k, p, t, θ, f, s, z, ʧ, ʤ, ʃ, ʒ)
example: beg /bɛg/ -> begs /bɛgz/
video sources : http://www.youtube.com/user/FAi5334/, http://www.youtube.com/user/learnamericanenglish/
