[]→si: vision, occasion,
 s: pleasure, measure
 g: fouge, garage

[]→ch: cheese, lunch
  t: nature, situation
 tch: match, catch

[]→g(在i, e, y之前)gentle, giant
 j: just, enjoy
 age: bridge, judge
 d: graduation, education

[h]→h: hat, ham
  wh: who, whom, whose

[n]→n: can, nest
  nn: runner, dinner
  kn: knife, sign

[]→n(在k之后):pink, think
 ng: ring, song
 ※:ng发[ng]的音有finger, kangaroo

[j]→y: yellow, you
  i:onion
 
子音字母省略不发音的情况:

b→在t或m前不发音:debt, thumb

c→ck的c不发音:pick, lick
偶尔在s之后不发音:scene

g→在n之前不发音:gnash, degign

gh→在t之前不发音:bought, caught

h→在r或ki之后不发音:rhyme, khaki
 →和母音同时出现在字尾:ho, hurrah
 →偶尔在子音和费重音节母音之间不发音:shepherd
 →偶尔在字首不发音:hour, honor
 →在ex之后,exhaust

k→和n同时出现在字首时不发音:know, knee

l→在alk, alm, alf中不发音:talk, calm, half
 →在ould中不发音:should, could

n→和m同时出现时不发音:autumn, column

p→在n, s, t之前不发音:psychology

s→偶尔在i之后不发音:island, aisle
 →在Arkansas字尾的s: Arkansas

t→sten及-stle中的t不发音:fasten, castle
 →源自法国字的t不发音:depot, ballet

u→偶尔在g和q之后不发音:guard

w→和r同时出现在字首时不发音:write, wrong
 →在某些单字中不发音:two, answer, sword