语法困扰在一般过去时中,是单数用was,复数用were ,还是am,is的对应词是was,are的对应词用were?

在一般过去时中,如果以I开头是用was还是were 当一般过去时是三单时be过去式是用was还是were 用“am/is/are/was/were"填空 用am is was are were造句 用am,is,are,was,were填空. there was (were)no n.有no 那后面的名词和was (were)用单数还是复数 是There was none left.还是There were none left. 谓语动词用单数还是复数? was用于第一人称单数或第三人称单数用was 主语是复数是用were 用is,was are,were am,was造句, am/is/are的过去时分别是was还是were? 英语一般过去时的所有词语,比如:are---were am/is---was等 英语用am,is,are,was,were造句?