Matched context for weaken and concentrate

The page lists matched contexts for weaken and concentrate.

Share - weaken	Share - concentrate	Phrase
19.70%	4.65%	{weaken or concentrate} force [perform operation]
9.53%	5.55%	{weaken or concentrate} mixture [perform operation]
3.76%	1.37%	{weaken or concentrate} flow [perform operation]
3.27%	1.06%	{weaken or concentrate} modal can
2.09%	1.61%	not {weaken or concentrate}
2.56%	0.97%	{weaken or concentrate} member [perform operation]
1.71%	1.35%	{weaken or concentrate} modal will
1.36%	0.51%	{weaken or concentrate} modal may