過(guò)去進(jìn)行時(shí)的英語(yǔ)語(yǔ)法匯總
導(dǎo)語(yǔ)：過(guò)去進(jìn)行時(shí)表示過(guò)去正在進(jìn)行的動(dòng)作，經(jīng)常用在when, while, as引導(dǎo)的狀語(yǔ)從句中。下面cnfla小編為您收集整理了過(guò)去進(jìn)行時(shí)的英語(yǔ)語(yǔ)法，希望對(duì)您有幫助
過(guò)去進(jìn)行時(shí)的基本結(jié)構(gòu)：was/were+doing
When my husband was going into the dining room this morning, he dropped some coins on the floor.
Their father was watching TV while they were having dinner.
變疑問(wèn)句將be動(dòng)詞移到句首
Was their father watching TV while they were having dinner.
變否定句在be動(dòng)詞后面加 not
Their father was not watching TV while they were having dinner.
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