SN4 ""

No	Pattern	Freq
1	[conj] it [be] common [prep]	17
2	[noun] it [be] common [prep]	10
3	[subord] it [be] common [prep]	7
4	that it [be] common [prep]	6
5	that it [be] common [prep]	6
6	[that] it [be] common [prep]	6
7	[adv] it [be] common [prep]	5
8	[noun sg] it [be] common [prep]	5
9	it [be] [adv] common [prep]	99
10	it [be] [adv] common [prep]	96
11	it [be] quite common [prep]	35
12	it [be] quite common [prep]	35
13	it [be] more common [prep]	19
14	it [be] more common [prep]	19
15	it [be] very common [prep]	13
16	it [be] very common [prep]	13
17	it [be] increasingly common [prep]	5
18	it [be] increasingly common [prep]	5
19	it [be] now common [prep]	5
20	it [be] now common [prep]	5
21	it [be] common [noun sg] [prep]	36
22	it [be] common [noun] [prep]	36
23	it [be] common practice [prep]	20
24	it [be] common practice [prep]	20
25	it [be] common ground [prep]	10
26	it [be] common ground [prep]	10
27	it [be] common [verb] [prep]	5
28	it [be] common [to-vb] [prep]	5
29	it [be] common [prep] [noun]	46
30	it [be] common [prep] [noun pl]	32