Yes "it" can be utilized in all those constructions and others, but soem in the illustrations could use changes. When I see a colleague of mine creating such a phrase, I typically point out that it is a type of previous-fashioned impacted valediction which, possibly, currently, a local English speaker https://petskyonline-onlinestrore.blogspot.com/2025/07/top-10-aquarium-essentials-for-new-fish.html