Matched context for degrade and contaminate

The page lists matched contexts for degrade and contaminate.

Share - degrade	Share - contaminate	Phrase
4.40%	7.40%	{degrade or contaminate} sensor [perform operation]
3.34%	8.30%	{degrade or contaminate} V-V become
1.51%	3.37%	not {degrade or contaminate}
1.95%	2.15%	{degrade or contaminate} modal may
1.26%	1.91%	{degrade or contaminate} modal can
1.48%	1.54%	{degrade or contaminate} modal will
0.69%	1.51%	{degrade or contaminate} modal would