現(xiàn)在進(jìn)行時(shí)的結(jié)構(gòu)

現(xiàn)在進(jìn)行時(shí)由“am / is / are + 現(xiàn)在分詞”構(gòu)成。如：

I’m studying at Yu Cai Senior Middle school. 我在育才中學(xué)讀書(shū)。

He is writing on the desk. 他再課桌上寫(xiě)字。

They are talking about their visiting the Great Wall. 他們?cè)谡務(wù)撚伍L(zhǎng)城的事情。

【說(shuō)明】動(dòng)詞現(xiàn)在分詞的構(gòu)成方法：

(1) 一般在動(dòng)詞后加-ing。如：say—saying, play—playing, think—thinking, study—studying, teach —teaching, blow—blowing, build—building.

(2) 動(dòng)詞若以-e結(jié)尾, 則去e再加-ing。如：love—loving, make—making, guide—guiding, date—dating.

(3) 在以單短元音的重讀閉音節(jié)結(jié)尾，且末尾只有一個(gè)輔音字母的動(dòng)詞后，雙寫(xiě)最后一個(gè)輔音字母，再加-ing。如：begin—beginning, regret—regretting, plan—planning, ban — banning.

(4) 在以ie結(jié)尾的動(dòng)詞后，改ie為y，再加-ing。如：lie—lying, die—dying, tie—tying.

(5) 在以-c[k] 結(jié)尾的動(dòng)詞后加-king。如：picnic—picnicking, panic—panicking.

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