is am过去式是什么？(is在中文中是什么词性？)

is am 的过去式是was

例如：I was at home yesterday, I didn't go to school.

is在中文中是什么词性？

is在中文中相当于是动词词性

例句

1.

The first stage in research is data collection.

研究工作的第一步是收集资料。

2.

The fact is, they're there to make money.

真实的情况是，他们去那儿是为了赚钱。

3.

Things ain't what they used to be.

现在情况不比从前了。

is am过去式是什么？

is am 的过去式是was

例如：I was at home yesterday, I didn't go to school.

is在中文中是什么词性？

is在中文中相当于是动词词性

例句

1.

The first stage in research is data collection.

研究工作的第一步是收集资料。

2.

The fact is, they're there to make money.

真实的情况是，他们去那儿是为了赚钱。

3.

Things ain't what they used to be.

现在情况不比从前了。

is在中文中是什么词性？

is在中文中相当于是动词词性

例句

1.

The first stage in research is data collection.

研究工作的第一步是收集资料。

2.

The fact is, they're there to make money.

真实的情况是，他们去那儿是为了赚钱。

3.

Things ain't what they used to be.

现在情况不比从前了。