動詞ing形式的變化規(guī)則:
現(xiàn)在進(jìn)行時: am,are,is +動詞ing(表示正在進(jìn)行的動作)
動詞ing的'變化規(guī)則:
。、一般情況直接+ing.
例:sweep-sweeping read-reading.
。病⒁圆话l(fā)音e結(jié)尾的去e+ing.
例:take-taking,make-making,have-having,ride-riding.
。、重讀閉音節(jié)一個輔音字母結(jié)尾,雙寫輔音字母+ing
例:shop-shopping,sit-sitting,swim-swimming.