Looking on the internet deeply has found these results:

invitation is still available is the most popular phrase on the web.

invitation is still valid 13,940 results on the web	invitation is still available 114,300 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
The challenges are different, but the method is still valid. Your skill as a physician is still valid. He used to say something that is still valid. Your security authorization is still valid. Her passport from going to the Bahamas is still valid. That objective is still valid, but insufficiently attained. Geometry that is still valid, and at the same time still improves. The Lisbon process is still valid and a more productive Europe is required the Commissioner declared.	That window of opportunity is limited, but it is still available. An amount of EUR 837612015 is still available. That is, of course, if the assistant position is still available. I think the closet is still available. The company submitted that this invitation is still open. This information is still available on the ECB's website. The opportunity is still available if Iraq meets the very reasonable terms which have been laid down. Recycling and recovery will ensure that mercury is still available for remaining legitimate uses.

invitation is still valid

13,940 results on the web

invitation is still available

114,300 results on the web

More popular!

The challenges are different, but the method is still valid.
Your skill as a physician is still valid.
He used to say something that is still valid.
Your security authorization is still valid.
Her passport from going to the Bahamas is still valid.
That objective is still valid, but insufficiently attained.
Geometry that is still valid, and at the same time still improves.
The Lisbon process is still valid and a more productive Europe is required the Commissioner declared.

That window of opportunity is limited, but it is still available.
An amount of EUR 837612015 is still available.
That is, of course, if the assistant position is still available.
I think the closet is still available.
The company submitted that this invitation is still open.
This information is still available on the ECB's website.
The opportunity is still available if Iraq meets the very reasonable terms which have been laid down.
Recycling and recovery will ensure that mercury is still available for remaining legitimate uses.