"पीटर और नेहा यहाँ थे ।"

Translation: Peter and Neha were here.

[BigAl82]

I wonder if this is carved into some banyan trees somewhere...

[whimslcott]

Why is this "were" but all the others are "used to be"?

[Zerenei]

था means was, the structure of "Used to be" is used when you conjugate a verb in present simple followed by था, as in "वह सोता था" = He used to sleep. But था being used without a verb means was. So, "Peter and Neha used to be here" = पीटर और नेहा यहाँ होते थे

[ULpeace]

You understood pretty well. I am an Indian and i really appreciate the way you explained the difference between the two things