请教 下面句子是什么句型,下面是我自己的分析.
1)The fire is burning.
The fire/is/burning 主/系动词/表语
2) They are playing.
They/are/playing 主/系动词/表语
3) They are playing football.
They/are playing/football 主/及物动词/宾语
4)We found John a loyal friend.
We/found/John/a loyal friend. 主/宾补动词/宾语/宾补
请问 一楼的第一个答案 “主语+谓语”与我写的“主/系动词/表语”区别在哪里?