I just sweep the floor simply.

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. My brother needed me to go to his place before but it has been delayed till now.
  2. My brother needed me to go to his place before but there was a delay till now.
  3. He always stand me up after we have made plan to hangout.
  4. I just sweep the floor simply.( can I say simply).

Are the above sentences correct? Please advise.

2

1/2) My brother needed me to go to his place before earlier, but I’ve been delayed until now.
3) He always stands me up after we have made plans to hang out.
4) I (simply) (just) sweep the floor.
I simply sweep the floor.
I just sweep the floor.
I simply just sweep the floor.
I just simply sweep the floor.
– these are all possible but are used in different contexts.