SN4 ""

No	Pattern	Freq
1	reason for the [noun sg] [prep]	365
2	reason for the [noun sg] of	253
3	reason for the [noun sg] [prep]	231
4	reasons for the [noun sg] [prep]	134
5	reason for the [noun sg] in	64
6	reason for the decline [prep]	15
7	reason for the failure [prep]	14
8	reason for the increase [prep]	14
9	reason for the [noun sg] on	12
10	reason for the existence [prep]	11
11	reason for the [noun sg] between	11
12	reason for the lack [prep]	11
13	reason for the [noun sg] to	10
14	reason for the growth [prep]	9
15	reason for the popularity [prep]	9
16	reason for the choice [prep]	8
17	reason for the development [prep]	7
18	reason for the rise [prep]	7
19	reason for the use [prep]	6
20	reason for the introduction [prep]	6
21	reason for the difference [prep]	6
22	reason for the enforcement [prep]	5