SN4 ""

No	Pattern	Freq
1	[conj] it have not been [adj]	45
2	[coord] it have not been [adj]	21
3	[subord] it have not been [adj]	13
4	but it have not been [adj]	11
5	but it have not been [adj]	11
6	that it have not been [adj]	11
7	[that] it have not been [adj]	11
8	that it have not been [adj]	11
9	and it have not been [adj]	10
10	and it have not been [adj]	10
11	[adv] it have not been [adj]	8
12	[noun] it have not been [adj]	8
13	if it have not been [adj]	7
14	if it have not been [adj]	7
15	[pron] it have not been [adj]	6
16	[noun pl] it have not been [adj]	5
17	[verb] it have not been [adj]	5
18	it [adv] have not been [adj]	5
19	it [adv] have not been [adj]	5
20	it have not [adv] been [adj]	17
21	it have not [adv] been [adj]	17
22	it have not always been [adj]	12
23	it have not always been [adj]	12
24	it have not been [art] [adj]	51
25	it have not been [art] [adj]	51
26	it have not been [adv] [adj]	46
27	it have not been [adv] [adj]	46
28	it have not been a [adj]	43
29	it have not been a [adj]	30
30	it have not been [prep] [adj]	21