英文gerund Help!!20 點急ar !! 5該

•Save energy by turning off lights that you are not using.
•Save water by turning off the faucet while you brush your teeth.

呢啲係祈使句。imperative sentences
例如老師上堂叫你Stand up/Sit down都係呢個情況。
上面句子係建議，叫你唔係用緊時要慳電。--> 叫人做某樣事(如呢句叫人慳能量)

Eating healthily makes you strong. 呢類句子，Eating healthily被名詞化，所以要用ing form.
希望你悟透到la

Gerund(technical) is a noun in the form of a present participal, that describes an action on experience, such as "shopping", in the sentence I like shopping;Its a verbal noun.
eg:-"building" in The building of the housing estate was slow work.
eg:-"building" in The HSBC bank is a tall building.
eg:-"baking" in The baking of bread is found in Bakery.
eg:-"smoking" in Smoking damages your health with HK$ 5000.
eg:-"bearing" in Bearing in mind gerund comes from gerundium Latin,you must bring it to bear.
For the point form at the beginning of sentence may be used phrase:-
because "phrase" is a set of words expressing a single idea,forming part of a sentence though NOT constituting a clause,may be an idiomatic expression:-
eg:-a phrased reply;the expression, in the saying, in the remark, wording and formulating, putting into frame-work, for the use of teachers, ,in turn subdivided into, take one's pick,the visible surface etc.

基本上所有動詞係開頭都係gerund因為佢由動詞變左名詞 point form既句子要用gerund既 phrase 就唔使
Eating so much will make u fat.
Watching too much television will hurt your eyes.
Running more will make you stronger
-getting more exercise(can be get more exercise)
-eatting more candy(can be eat more candy)
-playing word games will make you smarter(can't be play word games will make you smarter)