"नेहा और पीटर तैर रहे थे।"

Translation: Neha and Peter were swimming.

[raypab]

not in hindi... signs of contractions are not in hindi special symbols are there for rare cases but that's out of the scope of your syllabus for now...
use या, और, (अथवा, तथा,)
depending on the sentence, tense, form, action, situation, meaning and sense

[m_belqadr76]

Were swimming, not had been swimming

Right?

[Zayna_Lisa]

I forgot and typed the name as peter and neha is wrong

[Radhe1o8]

An ampersand or "et" symbol is the same as "and"; both are correct.

[Radhe1o8]

An ampersand or "et" symbol is the same as "and"; both are correct.