Not sure of #1. The berries on #2 look like porcelain berry, but the leaves are
wrong. It is in the Vitaceae.

#3 is probably lily of the valley. It is very invasive.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)