, Use "is" if the person continues to be while in the purpose/marriage you are talking about, and "was" if they're not in that role/partnership anymore. Indeed "it" can be utilized in all of those constructions and others, but soem of your illustrations could use adjustments. State Housing Finance Agency: https://www.jowissa.com/products/mat-alligator-leather-watch-strap-e3-1234