SN4 ""

No	Pattern	Freq
1	[noun] [conj] it [is] often [verb]	19
2	[noun sg] [conj] it [is] often [verb]	16
3	[adv] [conj] it [is] often [verb]	6
4	[adv] [conj] it [is] often [verb]	5
5	[conj] it [is] [adv] often [verb]	10
6	[conj] it [is] [adv] often [verb]	6
7	[conj] it [is] often [adj] [verb]	58
8	[conj] it [is] often [adj] [verb]	48
9	[conj] it [is] often difficult [verb]	23
10	[conj] it [is] often difficult [verb]	23
11	[conj] it [is] often [adj -er] [verb]	10
12	[conj] it [is] often easy [verb]	8
13	[conj] it [is] often easier [verb]	7
14	[conj] it [is] often necessary [verb]	6
15	[conj] it [is] often necessary [verb]	6
16	[conj] it [is] often possible [verb]	5
17	[conj] it [is] often possible [verb]	5
18	[conj] it [is] often [verb] [prep]	32
19	[conj] it [is] often [verb] [prep]	32
20	[conj] it [is] often [verb] [conj]	18
21	[conj] it [is] often [verb] that	16
22	[conj] it [is] often [verb] [that]	16
23	[conj] it [is] often [verb] that	16
24	[conj] it [is] often [verb] by	8
25	[conj] it [is] often [verb] as	8
26	[conj] it [is] often [verb] as	8
27	[conj] it [is] often [verb] by	8
28	[conj] it [is] often [verb] to	6
29	[conj] it [is] often [verb] in	6
30	[conj] it [is] often [verb] [adv]	6