SN4 ""

No	Pattern	Freq
1	[modal v] have been [to-vb]	134
2	[vb mod] have been [to-vb]	134
3	would have been [to-vb]	108
4	would have been [to-vb]	108
5	[adv] have been [to-vb]	12
6	[adv] have been [to-vb]	10
7	must have been [to-vb]	8
8	may have been [to-vb]	8
9	must have been [to-vb]	8
10	may have been [to-vb]	8
11	might have been [to-vb]	6
12	might have been [to-vb]	6
13	have been [adj] [to-vb]	1074
14	have been [adj] [to-vb]	968
15	have been [verb] [to-vb]	491
16	have been [vb pp] [to-vb]	441
17	have been able [to-vb]	353
18	have been able [to-vb]	353
19	have been expect [to-vb]	76
20	have been [adj -er] [to-vb]	76
21	have been expected [to-vb]	75
22	have been used [to-vb]	48
23	have been use [to-vb]	48
24	have been [v-ing] [to-vb]	48
25	have been good [to-vb]	42
26	have been better [to-vb]	40
27	have been allow [to-vb]	39
28	have been easy [to-vb]	39
29	have been allowed [to-vb]	39
30	have been happy [to-vb]	36