I ask him to help me.
I主语
ask谓语动词
him宾语
to help me宾语补足语
I must get it done
I主语
must get谓语部分,其中must是情态动词,get是真正的谓语动词
it宾语
done是用过去分词做的宾语补足语
I ask him to help me.
I主语
ask谓语动词
him宾语
to help me宾语补足语
I must get it done
I主语
must get谓语部分,其中must是情态动词,get是真正的谓语动词
it宾语
done是用过去分词做的宾语补足语