try doing/to do

　　try to do　　努力，企圖做某事。

　　try doing　 試驗，試著做某事。

　　You must try to be more careful.　你可要多加小心。

　　I tried gardening but didn't succeed. 我試著種果木花卉，但未成功。

　　go on doing/to do

　　go on to do　做了一件事后，接著做另一件事。

　　go on doing　 繼續(xù)做原來做的事。

　　After he had finished his maths，he went on to do his physics. 做完數(shù)學后，他接著去做物理。

　　Go on doing the other exercise after you have finished this one. 作完這個練習后，接著做其他的練習

　　be afraid doing/to do

　　be afraid to do　不敢，膽怯去做某事，是主觀上的原因不去做，意為"怕";

　　be afraid of doing　擔心出現(xiàn)doing的狀況、結(jié)果。 doing 是客觀上造成的，意為"生怕，恐怕"。

　　She was afraid to step further in grass because she was afraid of being bitten by a snake. 她生怕被蛇咬著，而不敢在草叢中再走一步。

　　She was afraid to wake her husband. 她不敢去叫醒她丈夫。

　　She was afraid of waking her husband. 她生怕吵醒她丈夫。

　　be interested doing/to do

　　interested to do　　 對做某事感興趣，想了解某事。

　　interested in doing　 對某種想法感興趣，doing 通常為想法。

　　I shall be interested to know what happens. 我很想知道發(fā)生了什么事。 (想了解)

　　I'm interested in working in Switzerland. Do you have any idea about that? 我對在瑞士工作感興趣。你想過這事嗎?　 (一種想法)

　　mean to doing/to do

　　mean to do　 打算、想

　　mean doing　意味著

　　I mean to go, but my father would not allow me to. 我想去，但是我父親不肯讓我去。

　　To raise wage means increasing purchasing power. 贈加工資意味著增加購買力。

　　begin(start) doing/to do

　　begin / start to do sth

　　begin / start doing sth。