Which one is grammatically correct?

  • Part of my responsibilities was to...
  • Part of my responsibilities were to...
I'm leaning towards "was" but not sure...
MrAtheistWhich one is grammatically correct?
Hi,

Part of my responsibilities was...

One of my responsibilities was...

Regards
Why not learn the art of rephrasing constructions you are not sure of?

'My responsibilities included. . . '

Rover