现在分词的变化规则
1.普通动词：格式+ing
Think ---thinking sleep（睡觉）---sleeping study（学习）---studying
Speak---speaking say---saying
Go---going do---doing play---playing clean（把···弄干净）---cleaning
Sing---singing read--reading cook--cooking stand（站立）--standing
Draw--drawing listen--listening wash（洗）--washing snow--snowing
Rain--raining answer（回答）--answering blow（吹）--blowing buy--buying
Carry（拿/搬运）--carrying eat--eating fly（飞）--flying help--helping
Jump（跳）--jumping learn（学习）--learning cry（哭）--crying join（加入）--joining
Look（看）—looking know(知道)kowing keep(保持)—keeping
2.以不发音的e结尾的动词：去掉e再加ing，格式：去掉e+ing Wake（醒来）---waking make---making come--- coming Take---taking leave（离开）---leaving have---having
Dance---dancing ride（骑）---riding write（写）---writing Choose（选择）—choosing close（关闭）—closing
3.以重读闭音节结尾，呈现“辅，元，辅”结构的动词，先双写末
尾的辅音字母，再加ing
Stop（停止）---stopping sit（坐）---sitting run---running forget（忘记）--forgetting
Begin（开始）--beginning cut（切割）--cutting get （获得/了解）--getting hit（打击）--hitting
Set（设置/放置）--setting swim--swimming fit（安装）--fitting dig--digging
Shop（购物）—shopping put（放）—putting refer
（涉及/谈及）—referring
Prefer---preferring
4.以ie结尾的动词，把ie改为y，再加ing
Lie—lying（平躺/说谎）die—dying(死) tie –tying（系，捆）。