SN4 ""

No	Pattern	Freq
1	[conj] it have been	3393
2	[subord] it have been	1971
3	[coord] it have been	829
4	[noun] it have been	775
5	[adv] it have been	678
6	[that] it have been	593
7	that it have been	593
8	that it have been	593
9	if it have been	519
10	if it have been	519
11	[noun sg] it have been	502
12	[adv] it have been	489
13	[verb] it have been	470
14	and it have been	466
15	and it have been	466
16	but it have been	353
17	but it have been	353
18	as it have been	323
19	as it have been	323
20	[pron] it have been	300
21	[Wh det] it have been	240
22	[adj] it have been	222
23	[noun pl] it have been	198
24	[prep] it have been	189
25	[prep] it have been	189
26	[Wh adv] it have been	163
27	which it have been	161
28	which it have been	161
29	than it have been	157
30	than it have been	157