�、菐в衱as或were的句子，其否定、疑問的變化和is, am, are一樣，即否定句在was或were后加not，一般疑問句把was或were調(diào)到句首。

　　3.句中沒有be動(dòng)詞的一般過去時(shí)的句子

　　否定句：didn’t +動(dòng)詞原形，如：Jim didn’t go home yesterday.

　　一般疑問句：在句首加did，句子中的動(dòng)詞過去式變回原形。如：Did Jim go home yesterday?

　　特殊疑問句：

　�、乓蓡栐~+did+主語+動(dòng)詞原形?如：What did Jim do yesterday?

　�、埔蓡栐~當(dāng)主語時(shí)：疑問詞+動(dòng)詞過去式?如：Who went to home yesterday?

　　4、動(dòng)詞過去式變化規(guī)則：

　　一般在動(dòng)詞末尾加-ed，如：pull-pulled, cook-cooked；結(jié)尾是e加d，如：taste-tasted；末尾只有一個(gè)元音字母和一個(gè)輔音字母的重讀閉音節(jié)，應(yīng)雙寫末尾的輔音字母，再加-ed，如：stop-stopped；以“輔音字母+y”結(jié)尾的，變y為i， 再加-ed，如：study-studied。

　　不規(guī)則動(dòng)詞過去式：

　　am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode, speak-spoke, sweep-swept, swim-swam, sit-sat