Could you please correct the stress words I have marked in bold in the following sentences?

1. Welcome everybody to the first session of

2. We gonna cover a couple of different things.

3. This is basically gonna be the session that is…

4. This session gonna be covering more advanced techniques

5. He is gonna do a great job.

By the way, these sentences are from this Google video I am trying to imitate. In the video, sometimes it is not clear which words are being stressed.