I didn't mentioned this before vs I didn't mention this before

The correct phrase is 'I didn't mention this before.' The verb 'mention' should be in the base form, without 'ed', because 'didn't' already indicates the past tense.

Explained by Jennifer
Editor at TextRanch

Last updated: July 12, 2024 • 64492 views

I didn't mentioned this before

This phrase is incorrect. The verb 'mention' should be in the base form without 'ed' when used with 'didn't'.

The correct form is 'I didn't mention this before.' Use the base form of the verb 'mention' after 'didn't' to indicate the past tense.

Show examples from the web [+]

You mentioned this before at our last session.
I think I may have mentioned this before, but I pawned the guitar to save my club.
I don't know if I mentioned this before, but I really like chili.
So why would you not have mentioned this before yesterday?
Don't you think Cyrene might have mentioned this before now?
I have mentioned this before and I should like to repeat it here: this is important and it applies to all three action programmes.
And you hadn't mentioned it before today.
I was just surprised you hadn't mentioned it before.
Mummy, you never mentioned this cousin before.
Wish you had mentioned that before I did the whole protest Mass and everything.
I haven't mentioned it before but she came into the clinic, last week, before her regular doctor's appointment.
Is that fair when she hasn't mentioned it before now?
Dinner with some D.A. you've never even mentioned before.
I've spoken to the haematologist I mentioned before.
Now as I have mentioned before...
You mentioned before your official visit to a railway outpost.
You mentioned before about Diane and me getting remarried.
Because as I mentioned before, it's very dangerous.
Just like I mentioned before, love.
With the co-worker you mentioned before?

Alternatives:

I didn't mention this before.
I haven't mentioned this before.
I hadn't mentioned this before.
I did not mention this before.

I didn't mention this before

This phrase is correct and commonly used in English.

This phrase is the correct form. Use 'mention' in the base form after 'didn't' to indicate the past tense.

Show examples from the web [+]

I'm sorry I didn't mention this before, Harry, but I had to take into account your mental state.
You didn't mention this before.
You didn't mention that before.
- You didn't mention that before.
That's why I didn't mention him to you before.
You know, fellas, I didn't mention it before - because it goes without saying -
Didn't mention these before, 'cause I only brought two.
I did not mention this before but the report acknowledges that there has been an improvement in effective access, in positive responses to applications for access to documents.
So maybe you didn't mention him to us before because it would have been a mitigating factor in Chief Johnson's favor.
Why didn't you mention this before?
You know, I didn't mention this at the time when he was chosen Pope.
Patty, there's something that I didn't want to mention before, but our friends in the legal community have been talking.
Patty, there's something that I didn't want to mention before, but our friends in the legal community have been talking.
I did mention before this House our intention to outline and clarify some aspects of this opinion at a later date.
I didn't mention this yesterday, but there was a hat there and then...
- I didn't mention angels.
And it didn't occur to you to mention this before?
Okay, so the bunny didn't mention this part.
You didn't mention this back pain yesterday, Carly.
You didn't mention this because?

Alternatives:

I didn't mention this before.
I haven't mentioned this before.
I hadn't mentioned this before.
I did not mention this before.

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I didn't mentioned this before vs I didn't mention this before

I didn't mentioned this before

I didn't mention this before

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