Sentence examples for this has already from inspiring English sources

This has already begun.

This has already happened.

Indeed, this has already begun.

Unfortunately, this has already happened.

This has already had an effect.

This has already started to happen.

Some people believe this has already happened.

In some instances, this has already happened.

For great apes, this has already happened.

This has already been postponed once.

This has already been relaxed once.