动词的时态

am/is 的过去式 was
are 的过去式 were

动词的过去式

  1. +ed answer,played,looked
  2. 不发音e+d arrived,moved,telephoned
  3. 重度闭音节,双写辅音字母+ed stopped,planned
  4. 辅音+y–>ied carried,studied
  5.                                                  say--said,do--did,have/has--had,make--made,see--saw,leave--left