SN4 ""

No	Pattern	Freq
1	that [pers pn] [vb mod] have been [adj]	121
2	that [pers pn] [vb mod] have been [adj]	120
3	that [pers pn] [vb mod] have been [adj]	90
4	that it [vb mod] have been [adj]	65
5	that [pers pn] would have been [adj]	64
6	that [pers pn] [vb mod] have been [adj -er]	21
7	that [pers pn] might have been [adj]	20
8	that he [vb mod] have been [adj]	20
9	that [pers pn] [vb mod] have been better	16
10	that [pers pn] [vb mod] have been good	16
11	that [pers pn] must have been [adj]	12
12	that they [vb mod] have been [adj]	11
13	that i [vb mod] have been [adj]	8
14	that [pers pn] should have been [adj]	8
15	that you [vb mod] have been [adj]	8
16	that [pers pn] [vb mod] have been able	8
17	that [pers pn] [vb mod] have been able	8
18	that [pers pn] may have been [adj]	7
19	that she [vb mod] have been [adj]	7
20	that [pers pn] could have been [adj]	7
21	that [pers pn] [vb mod] have been [num]	6