主格：I弄匕，he, she, it, you, they 1.I am a teacher. 2.He is a teacher. 3.You a...

Be 動(dòng)詞的否定 在is , am , are , was , were 后面加not. 縮略式isn't , am not , aren't ...

Be 動(dòng)詞的形式 be , is , am , are , was , were , being , been is , am , are : ...

五種基本句式 （主語(yǔ)：?jiǎn)柕氖鞘裁?|| 謂語(yǔ)：表示動(dòng)作 || 賓語(yǔ)：主體執(zhí)行的動(dòng)作 || 系： || 連接作用的動(dòng)詞 || 表語(yǔ)： 描敘主語(yǔ)性...