SN4 ""

No	Pattern	Freq
1	[noun] which [is] often	75
2	[noun sg] which [is] often	69
3	[noun pl] which [is] often	5
4	which [pron] [is] often	8
5	which [is] [adv] often	32
6	which [is] [adv] often	28
7	which [is] so often	10
8	which [is] so often	10
9	which [is] often [verb]	95
10	which [is] often [vb pp]	94
11	which [is] often [adv]	26
12	which [is] often [adj]	25
13	which [is] often [adj]	25
14	which [is] often [adv]	23
15	which [is] often [art]	15
16	which [is] often [art]	15
17	which [is] often use	13
18	which [is] often used	13
19	which [is] often the	8
20	which [is] often the	8
21	which [is] often a	7
22	which [is] often a	7
23	which [is] often quite	5
24	which [is] often quite	5