SN4 ""

No	Pattern	Freq
1	[vb mod] have been [verb] in [adj]	108
2	[vb mod] have been [vb pp] in [adj]	102
3	[vb mod] have been [verb] in [det]	52
4	[vb mod] have been [verb] in [adj]	33
5	would have been [verb] in [adj]	27
6	could have been [verb] in [adj]	20
7	[vb mod] have been [verb] in [num]	19
8	may have been [verb] in [adj]	19
9	might have been [verb] in [adj]	14
10	[vb mod] have been [verb] in this	13
11	[vb mod] have been [verb] in this	13
12	should have been [verb] in [adj]	11
13	[vb mod] have been [verb] in some	10
14	[vb mod] have been [verb] in some	10
15	will have been [verb] in [adj]	10
16	[vb mod] have been [verb] in that	9
17	[vb mod] have been [verb] in any	9
18	[vb mod] have been [verb] in that	9
19	[vb mod] have been [verb] in any	9
20	[vb mod] have been [verb] in other	6
21	[vb mod] have been [verb] in other	6
22	[vb mod] have been [verb] in such	6
23	[vb mod] have been [v-ing] in [adj]	6
24	must have been [verb] in [adj]	6
25	[vb mod] have been [verb] in such	6
26	[vb mod] have been used in [adj]	5
27	[vb mod] have been use in [adj]	5