Is was able to confirmed correct grammar?

It seems like you're asking if "I was able to confirm" is grammatically correct.

The answer is yes, it is grammatically correct.

However, it sounds a bit awkward in the context of your sentence. Let's look at the full sentence:

"I was able to confirmed correct grammar."

This sentence has a couple of issues:

1. "Confirmed" should be in past tense. It should be "I was able to confirm."

2. "Correct grammar" isn't quite the right phrase. It would be better to say something like "I was able to confirm the grammar was correct."

Here are a couple of ways to rephrase the sentence:

* "I was able to confirm that the grammar was correct."

* "I was able to verify that the grammar was correct."

Let me know if you have any other sentences you'd like help with!