Are these sentences natural? Feb 1

[musicgold]

Hi,

Are the following sentences natural to a native ear?

1. I thought I would debrief you on that once you are\ have come back.

2. I applaud you on a speech well done.

3. We didn't know your hidden talent as an actor.

Thanks,
MG.

[billmcd]

Hi,

Are the following sentences natural to a native ear?

1. I thought I would debrief you on that once you are\ have come back. "once you are back" or "once you have come back"

2. I applaud you on a speech well done. OK.

3. We didn't know about your hidden talent as an actor.

Thanks,
MG.

b.