Looking on the internet deeply has found these results:

once he is back is the most popular phrase on the web.

once he will be back 12 results on the web	once he is back 15,270 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Or... he was handling them once he got back. Once he gets back on his regular medication... I'll be back once my weight's right. And once he was back, he played small. toy here will get conjugal visits once he's back in prison. Your killer boy Gibbs, I bet, once he comes back from his... He ditched his family once he got back to Santa Barbara.	Oct 5, 2015 ... Once he is back, well that's when things gets really uncertain. Coleman outplayed Freeman over the first two games, and had double the ... Aug 14, 2015 ... I love a guy completely, and he left me once. He is back now though, but inside me I fear whether he would leave me again. I am just a little . ... by the powers he wielded and was buffeted by, a President's character and personal qualities may emerge in stronger relief once he is back in private life. May 18, 2014 ... I love a guy completely, and he left me once. He is back now though, but inside me I fear whether he would leave me again. I am just a little ...

once he will be back

12 results on the web

once he is back

15,270 results on the web

More popular!

Oct 5, 2015 ... Once he is back, well that's when things gets really uncertain. Coleman outplayed Freeman over the first two games, and had double the ...
Aug 14, 2015 ... I love a guy completely, and he left me once. He is back now though, but inside me I fear whether he would leave me again. I am just a little .
... by the powers he wielded and was buffeted by, a President's character and personal qualities may emerge in stronger relief once he is back in private life.
May 18, 2014 ... I love a guy completely, and he left me once. He is back now though, but inside me I fear whether he would leave me again. I am just a little ...