Sunday's is possessive in nature when you use the apostrophe. Use Sundays instead, unless you know someone named Sunday. See the difference below: If only all Sundays were so smooth. If only all Sunday's weather was so smooth.
singular vs plural - Do we use Sunday's or Sundays - English Language ...
Sunday is understood to be a particular place in the week or in calendar time, hence on. On June 24th. On Sunday. Sunday evening and Sunday can both be fluid in their meaning, referring to either a duration of time: We waited for your call all Sunday evening. We waited for your call all evening, Sunday. We waited for your call all day, Sunday. We waited for your call all Sunday. and to a place ...
Besides, if you say you do something on Sunday (s), Monday (s), etc. , it also conveys the sense that you do it on every Sunday, Monday, etc. So you can also say: It's something I do on Sunday or Sundays instead of It's something I do every Sunday that is more clear and emphatic.
prepositions - "Every Sunday" or "on every Sunday"? - English Language ...
Only on Sunday did I remember that I was supposed to have sent the report on Friday morning. The deadline was over at the point of the discovery (Sunday). So to have sent is correct. To send is used if the deadline was still not over on Sunday. I was busy last week. Only on Sunday did I remember that I was supposed to send the report the following Monday. Here is the report.