SN4 ""

No	Pattern	Freq
1	[noun] which account for [adj]	17
2	[noun sg] which account for [adj]	12
3	which [adv] account for [adj]	8
4	which [vb mod] account for [adj]	8
5	which [adv] account for [adj]	8
6	which [modal v] account for [adj]	8
7	which account for [adv] [adj]	28
8	which account for [adv] [adj]	27
9	which account for [art] [adj]	19
10	which account for [art] [adj]	19
11	which account for the [adj]	14
12	which account for the [adj]	14
13	which account for about [adj]	10
14	which account for about [adj]	10
15	which account for [adj] [adj]	6
16	which account for [pron] [adj]	5
17	which account for a [adj]	5
18	which account for [pos pn] [adj]	5
19	which account for a [adj]	5
20	which account for over [adj]	5
21	which account for over [adj]	5
22	which account for [adj] per	24
23	which account for [adj] [no cls]	24
24	which account for [adj] [unc]	24
25	which account for [adj] per	24
26	which account for [adj] [prep]	17
27	which account for [adj] of	17
28	which account for [adj] [prep]	17
29	which account for [adj] of	17
30	which account for [adj] [noun]	9