It is retarded under certain conditions, none of which, however, appear to have been present in this case. 
Under certain conditions (none of which have been present in this case), it is retarded.
All of the conditions mentioned have appeared in this case.
It has a very sleek design.
A woman gave a man a kiss.
There isn't a line between warning the public and disagreeing tastes.
At Cramant are the beautiful sight of beautiful vines and Marne Valley.
The dirty man makes a mess on a picnic table.
People are watching television.