No -- it may look similar to the prefix bI which is used for "you ..." (e.g. bIHegh "you die" or bI'IH "you are handsome"), but bIH is a separate word meaning "they" or "they are".
Note that Klingon has a distinction not only between ghaH "he, she" and 'oH "it" in the singular, but also between chaH "they (capable of using language)" and bIH "they (not capable of using language)" in the plural.
Ahhh, so it should be if you were saying "you are targs" you'd say
I wish we knew more about the Vulcan language. Compared to Klingon, we've heard relatively little. Pon farr, kal-if-fee, kal-toh ... what else is there? Many of the Vulcan concepts we know of, such as the mind meld and the neck pinch, are expressed in English. We don't even know their Vulcan names.