The best way to verify that equivalent Pauli commutation relations promise the existence of a conjugating unitary? , use "is" if the individual remains to be during the job/romance you might be referring to, and "was" if they don't seem to be in that position/connection any more. Use protecting garments, https://snoopydirectory.com/listings866174/getting-my-best-rehab-centre-in-islamabad-to-work