SN4 ""

No	Pattern	Freq
1	[adj] effect upon	177
2	[adj] effect upon	150
3	[art] effect upon	58
4	[art] effect upon	58
5	the effect upon	26
6	the effect upon	26
7	[det] effect upon	24
8	[pron] effect upon	23
9	[pos pn] effect upon	22
10	an effect upon	18
11	a effect upon	18
12	profound effect upon	16
13	profound effect upon	16
14	no effect upon	14
15	no effect upon	14
16	its effect upon	12
17	its effect upon	12
18	adverse effect upon	9
19	adverse effect upon	9
20	their effect upon	8
21	significant effect upon	8
22	their effect upon	8
23	significant effect upon	8
24	some effect upon	7
25	some effect upon	7
26	little effect upon	6
27	considerable effect upon	6
28	little effect upon	6
29	considerable effect upon	6
30	important effect upon	5