SN4 ""

No	Pattern	Freq
1	[verb] that it have been [adj]	20
2	[noun] that it have been [adj]	13
3	[noun sg] that it have been [adj]	10
4	[vb base] that it have been [adj]	6
5	[pron] that it have been [adj]	6
6	[coord] that it have been [adj]	6
7	[conj] that it have been [adj]	6
8	[vb past] that it have been [adj]	5
9	that it [vb mod] have been [adj]	38
10	that it [modal v] have been [adj]	38
11	that it would have been [adj]	28
12	that it would have been [adj]	28
13	that it have [adv] been [adj]	18
14	that it have not been [adj]	11
15	that it have [not/n't] been [adj]	11
16	that it have not been [adj]	10
17	that it have [adv] been [adj]	7
18	that it have all been [adj]	5
19	that it have all been [adj]	5
20	that it have been [art] [adj]	33
21	that it have been [art] [adj]	33
22	that it have been a [adj]	29
23	that it have been a [adj]	24
24	that it have been [adv] [adj]	9
25	that it have been [adv] [adj]	9
26	that it have been [vb pp] [adj]	8
27	that it have been [verb] [adj]	8
28	that it have been an [adj]	5
29	that it have been [adj] [verb]	19
30	that it have been [adj] [to-vb]	19