more 是 ... 的 [说话]

[freefall]

My native speaker said it is not correct to say

我是昨天说话的。

Why?

I found this sentence online:

你好!我是昨天缴费的,为什么到现在还是显示的"未缴费"?

(http://www.jsgwyw.org/wt_Show.asp?id=8031)

我是昨天缴费的 is a very similar structure to 我是昨天说话的...

[MarkKang]

This structure can be adapted to just about anything in my experience. Your sentence could be the answer to: 你（是）什么时候说得？like when arguing about whether or not you actually said something.

Maybe your friend just couldn't imagine a context for the sentence.

[dufresne]

It is correct to say 我是昨天说这句话的。

[Quest]

It's not wrong grammatically, but it's hard to think of a context in which that would be said, because you 天天都说话, it makes little sense to stress that it was yesterday that you spoke words.

[MarkKang]

How bout this context Quest?

小胖，你怎么还没到呢？都在等着你啊。

我们不是越好 3：30 吗？

哎， 你怎么那么健忘，我们不是提前到3：00了吗？

什么哑，你什么时候说得？

我是昨天说得啊。你不记得，我昨天上午给你打电话的。

[roddy]

The original is 说话 though, not just 说. Like Quest says, grammatically it's ok and you could perhaps come up with a context in where you might use it (monks who've taken a vow of silence discussing who was last tempted to speak, perhaps), but it's going to be a bit convoluted. It's not a problem with 是.....的 as such, it's just an odd thing to say.

[MarkKang]

Yes, that makes a big difference, and I'd have to agree. It's interesting how I missed the 话 character. I guess because it is odd here.

So, Freefall, my comments are irrelevant. 答非所问。

[rezaf]

Is this a 是。。。的 structure? What is shi doing here? Is it possible to omit shi?

父母以为我是怕他们担心，故意撒谎骗他们。

[zglt1]

it's not wrong just because we dont say it that way.

if i say 我是昨天说话的 it will make people think 我今天不说话

because 说话 here becames one ability

so instead of it we say 我昨天说的 or 我上次说的