Can the two word had said be used next each other in a sentence?

While grammatically correct, it's generally awkward to use "had said" and "said" next to each other in a sentence.

Here's why:

* Redundancy: "Had said" implies something was said in the past. Using "said" again after that is unnecessary.

* Flow: It can make the sentence sound clunky and repetitive.

Here's an example of the awkwardness:

* Awkward: "He had said he would be here, but then he said he couldn't make it."

Here are some better ways to rewrite the sentence:

* Improved: "He said he would be here, but then he couldn't make it."

* Improved: "He had said he would be here, but circumstances changed."

You can use "had said" followed by "said" if you need to emphasize the past tense of both statements, but it's usually best to find a more concise and natural way to express the meaning.