Add punctuation: The tedder cannot swerve even under poor crop or field conditions
A: The tedder cannot swerve, even under poor crop or field conditions.

Add punctuation: The room is separated from the kitchen and has the most comfortable sofa ideal to relax after a day of sightseeing
A: The room is separated from the kitchen and has the most comfortable sofa, ideal to relax after a day of sightseeing.

Add punctuation: The plans must ensure rapid information of managers of bathing water as well as of the public
A:
The plans must ensure rapid information of managers of bathing water as well as of the public.