Thanks for subscribing for six months.

[BestBuddy]

Which is better?

Thanks for subscribing for six months.
Thanks for being subscribed for six months.
Thanks for having subscribed for six months.
Thanks for having been subscribed for six months.

 

[SoothingDave]

1, I think. DId someone just subscribe?

2 is just wrong.

3 is OK, but not natural.

4 would only apply if the subscription is over. It's not very natural.

 

[emsr2d2]

I wouldn't use #2 or #4. As SoothingDave said, #1 works if the person has only just subscribed and they have chosen a subscription period of six months. #3 is grammatically correct but I can't really think of a natural context for it.