SN4 ""

No	Pattern	Freq
1	[conj] it is often [adj] [verb]	46
2	[noun] it is often [adj] [verb]	26
3	[coord] it is often [adj] [verb]	21
4	[noun sg] it is often [adj] [verb]	18
5	[that] it is often [adj] [verb]	16
6	that it is often [adj] [verb]	16
7	and it is often [adj] [verb]	16
8	and it is often [adj] [verb]	16
9	that it is often [adj] [verb]	16
10	[subord] it is often [adj] [verb]	9
11	[adv] it is often [adj] [verb]	7
12	[noun pl] it is often [adj] [verb]	7
13	[adv] it is often [adj] [verb]	6
14	but it is often [adj] [verb]	5
15	but it is often [adj] [verb]	5
16	[verb] it is often [adj] [verb]	5
17	it is [adv] often [adj] [verb]	13
18	it is [adv] often [adj] [verb]	11
19	it is often [adv] [adj] [verb]	35
20	it is often [adv] [adj] [verb]	27
21	it is often very [adj] [verb]	8
22	it is often not [adj] [verb]	8
23	it is often more [adj] [verb]	8
24	it is often not [adj] [verb]	8
25	it is often very [adj] [verb]	8
26	it is often [not/n't] [adj] [verb]	8
27	it is often more [adj] [verb]	8
28	it is often [adj] [verb] [art]	64
29	it is often [adj] [verb] [art]	64
30	it is often [adj] [verb] the	43