Ich bin
Du bist
Er,Sie und Es sind.
... oh wait, I was having flashbacks to high school German class.
Ich bin
Du bist
Er,Sie und Es sind.
... oh wait, I was having flashbacks to high school German class.
I believe it's
Er, Sie, Es ist
And yes, both of are right.
"Sie ist", when "Sie" means "she".
"Sie sind", when "Sie" means "they" or "you (in a more formal way)".