I forgot locking my door.

[Winwin2011]

If I have forgotten locking my door and I do not have a memory of it. Is it natural to say ""I forgot locking my door."?

Thanks.

 

[emsr2d2]

If I have forgotten locking my door and I do not have a memory of it. Is it natural to say ""I forgot locking my door."?

Thanks.

I would say "I don't remember locking my door". There is no need to add "I don't have a memory of it". It is the kind of thing we would not say regularly. We would say it occasionally when we leave the house, and then realise a short time later that we are not sure if we locked the door or not.

 

[MikeNewYork]

If I have forgotten locking my door and I do not have a memory of it. Is it natural to say ""I forgot locking my door."?

Thanks.

The verb "forget" is one of those verbs that creates different meanings depending on its complement -- infinitive or gerund.

I forgot to mail the letter. (I didn't mail the letter.)
I forgot mailing the letter. (I mailed the letter)

This is the same if you substitute "didn't remember" for "forgot"