SN4 ""

No	Pattern	Freq
1	it is often [adv] [vb pp]	11
2	it is often [not/n't] [vb pp]	6
3	it is often not [vb pp]	6
4	it is often not [vb pp]	6
5	it is often [adv] [vb pp]	5
6	[conj] it is often [vb pp]	75
7	[subord] it is often [vb pp]	39
8	[coord] it is often [vb pp]	27
9	as it is often [vb pp]	21
10	as it is often [vb pp]	21
11	[noun] it is often [vb pp]	20
12	[noun sg] it is often [vb pp]	18
13	and it is often [vb pp]	17
14	and it is often [vb pp]	17
15	but it is often [vb pp]	10
16	but it is often [vb pp]	10
17	[that] it is often [vb pp]	9
18	that it is often [vb pp]	9
19	that it is often [vb pp]	9
20	[adv] it is often [vb pp]	8
21	although it is often [vb pp]	7
22	although it is often [vb pp]	7
23	it is [adv] often [vb pp]	38
24	it is [adv] often [vb pp]	32
25	it is most often [vb pp]	7
26	it is most often [vb pp]	7
27	it is [not/n't] often [vb pp]	6
28	it is so often [vb pp]	6
29	it is not often [vb pp]	6
30	it is not often [vb pp]	6