SN4 ""

No	Pattern	Freq
1	reason for [det] [noun]	392
2	reason for [det] [noun sg]	313
3	reason for this [noun]	254
4	reasons for [det] [noun]	202
5	reason for [det] [noun]	190
6	reason for [det] [noun pl]	76
7	reason for these [noun]	53
8	reason for such [noun]	28
9	reason for [det] change	24
10	reason for [det] difference	22
11	reason for any [noun]	20
12	reason for that [noun]	18
13	reason for [det] change	14
14	reason for [det] difference	13
15	reason for [det] discrepancy	11
16	reason for [det] discrepancy	11
17	reason for [det] decision	11
18	reason for [det] changes	10
19	reason for [det] lack	9
20	reason for [det] differences	9
21	reason for those [noun]	9
22	reason for [det] lack	9
23	reason for [det] choice	8
24	reason for [det] decision	8
25	reason for [det] increase	7
26	reason for [det] choice	7
27	reason for each [noun]	6
28	reason for [det] failure	6
29	reason for [det] increase	6
30	reason for [det] shift	5