Looking on the internet deeply has found these results:

They aren't very good is the most popular phrase on the web.

They aren't that very good 12 results on the web	They aren't very good 1372,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
They are very good, we go back in again. They are not very good soldiers, these Americans. These aren't the originals but they are very good replicas. You should know that they are in very good hands. And they are very good listeners, especially after I threatened them with my cane. And I think that they are a very good sampling Of what my level one class does. You have to keep in mind that the doctor has not seen the results yet, But so far they are looking very good. And what we discovered was that they aren't doing a very good job at discriminating for violence.	You have to keep in mind that the doctor has not seen the results yet, But so far they are looking very good. You should know that they are in very good hands. They are very good, we go back in again. They are not very good soldiers, these Americans. And they are very good listeners, especially after I threatened them with my cane. These aren't the originals but they are very good replicas. And I think that they are a very good sampling Of what my level one class does. And what we discovered was that they aren't doing a very good job at discriminating for violence.

They aren't that very good

12 results on the web

They aren't very good

1372,000 results on the web

More popular!

They are very good, we go back in again.
They are not very good soldiers, these Americans.
These aren't the originals but they are very good replicas.
You should know that they are in very good hands.
And they are very good listeners, especially after I threatened them with my cane.
And I think that they are a very good sampling Of what my level one class does.
You have to keep in mind that the doctor has not seen the results yet, But so far they are looking very good.
And what we discovered was that they aren't doing a very good job at discriminating for violence.

You have to keep in mind that the doctor has not seen the results yet, But so far they are looking very good.
You should know that they are in very good hands.
They are very good, we go back in again.
They are not very good soldiers, these Americans.
And they are very good listeners, especially after I threatened them with my cane.
These aren't the originals but they are very good replicas.
And I think that they are a very good sampling Of what my level one class does.
And what we discovered was that they aren't doing a very good job at discriminating for violence.