Do we use a comma before "as"
Do we use a comma before "THEN"
For Eg- The library has abundance of such books as people have started realizing the importance of such books.
EG-If you have already lost lots of money on that deal then I would recommended this deal to you.
Plz let me know if these sentence will contain comma or not?
'Yes' to both questions. These are good examples of how important a comma is when we read. Without the comma in each sentence it takes longer to understand the whole sentence.
By the way, you should use 'an abundance' and 'recommend'. :)