How I Met Your Mother returns tomorrow night with “Nannies.” Watch Marshall and Lily look for someone to take care of their child in this promo.

So far this season we have seen a glimpse of how Ted will meet the Mother: they are waiting for the same train leaving Farhampton after Barney and Robin’s wedding (although we still don’t know if the pair will actually get married). We’ve seen Barney and Quinn end their engagement after a pre-nup agreement disaster, while Robin has found a stable partner in Nick – but the promise of Barney and Robin getting together dooms that relationship too, of course. Meanwhile, Ted and Victoria are still happily together, exploring the could-have-been of the love that failed them the first time around when Victoria went to Germany and Ted cheated on her with Robin.

But now it’s Marshall and Lily’s turn to take the spotlight! In tomorrow’s episode “Nannies,” Barney will attempt to sabotage Marshall and Lily’s quest to find a suitable nanny for little Marvin Waitforit, while Ted and Robin argue about who’s got the most serious relationship.

“Nannies” airs Monday at 8/7c on CBS. Are you excited to see who Marshall and Lily end up choosing?