SN4 ""

No	Pattern	Freq
1	[noun sg] [prep] the level	536
2	[noun sg] at the level	110
3	[noun sg] at the level	110
4	[noun sg] in the level	101
5	[noun sg] in the level	101
6	[noun sg] to the level	78
7	[noun sg] to the level	78
8	[noun sg] of the level	68
9	[noun sg] of the level	68
10	[noun sg] on the level	61
11	[noun sg] on the level	61
12	increase [prep] the level	23
13	[noun sg] about the level	23
14	[noun sg] about the level	23
15	[noun sg] between the level	20
16	[noun sg] between the level	20
17	reduction [prep] the level	18
18	effect [prep] the level	15
19	relationship [prep] the level	14
20	[noun sg] below the level	13
21	[noun sg] below the level	13
22	[noun sg] above the level	12
23	[noun sg] above the level	12
24	[noun sg] over the level	11
25	[noun sg] over the level	11
26	[noun sg] for the level	10
27	change [prep] the level	10
28	[noun sg] for the level	10
29	control [prep] the level	9
30	rise [prep] the level	8