Otherwise , it will be a problem for us to understand certain thing in life .
Otherwise , it will be a problem for us to understand certain things in life . Otherwise , it will be a problem for us to understand certain things in life . Otherwise , it will be hard for us to understand certain things in life . Otherwise , it will be a problem for us to understand certain things in life .
Otherwise , it will be a problem for us to understand certain things in life .
Remove all grammatical errors from this text: Otherwise , it will be a problem for us to understand certain thing in life . Output: