SN4 ""

No	Pattern	Freq
1	that it have been [verb] [prep]	148
2	that it have been [verb] [prep]	148
3	that it have been [vb pp] [prep]	137
4	that it had been [verb] [prep]	96
5	that it have been [verb] by	54
6	that it have been [verb] by	54
7	that it has been [verb] [prep]	44
8	that it have been [verb] in	18
9	that it have been [verb] in	18
10	that it have been [verb] to	16
11	that it have been [verb] to	16
12	that it have been [v-ing] [prep]	11
13	that it have been [verb] for	10
14	that it have been [verb] for	10
15	that it have been [verb] at	9
16	that it have been [verb] with	9
17	that it have been [verb] at	9
18	that it have been [verb] with	9
19	that it have been [verb] from	8
20	that it have been [verb] from	8
21	that it 's been [verb] [prep]	8
22	that it have been [verb] on	7
23	that it have been [verb] on	7
24	that it have been make [prep]	5
25	that it have been written [prep]	5
26	that it have been write [prep]	5
27	that it have been made [prep]	5