她一直都在照看他和他4岁的妹妹。用英语怎么说？

她一直都在照看他和他4岁的妹妹。

She had been babysitting him and his four-year-old sister.

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

been

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去分词 ），在，存在，不受干扰，去过了，be的过去分词；

例句
Have you been able to have any kind of contact?...
你联系上了吗？

babysitting

n. 托婴服务；v. 临时受雇代外出的父母照料小孩( babysit的现在分词 )；

例句
She had been babysitting him and his four-year-old sister.
她一直都在照看他和他4岁的妹妹。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

sister

n. 姐妹，（称志同道合者）姐妹，修女，护士；adj. 姐妹般的，同类型的；v. 如姐妹般相待；

例句
My sister still claims she cheated on us at cards, but I know better.
我妹妹仍然说她和我们玩牌的时候捣了鬼，其实我心知肚明。