I need your help please.

"Memories" is plural so you need the plural form of a verb.

The more natural way to say this is "These mememories will last a lifetime."

And by an amazing coincidence, there was a commercial for Disney World airing just now, and at the exact same moment I wrote those words, it said "memories that will last a lifetime."

Thank you so much for replying to my post and thank you for giving me the more natural sentence.

Are the following sentence OK to use?

1. These memories stay/remain for lifetime.

2. These memories stay/remain life time.

3. These memories stay/remain through out the life.

4. These memories stay/remain for life long.

5. These memories stay/remai

None of them.
... for a lifetime.

Thanks for answering to my post.

Memories will last for a lifetime. Is this the only sentence we can use? Are there no any other alternatives? Please advice me what are the mistakes in the following sentences.

1. These memories stay/remain for lifetime.

2. These memories stay/remain lifetime.

3. These memories stay/remain through out the life.

4. These

Again, the natural one is "last a lifetime."
If you really want to use your "remain," then "these memories will remain with you for a lifetime" or "... will remain with you throughout your life."

Not:
- for lifetime
- lifetime
- for life long
- life long

Thank you so much Grammar Geek. I appreciate your replying to my post.

Shravan.