SN4 ""

No	Pattern	Freq
1	have been [adj] [noun] for	16
2	have been [adj] [adv] for	9
3	have been [adj] [adv] for	9
4	have been [adj] [noun pl] for	9
5	have been [adj] [verb] for	8
6	have been [adj] [noun sg] for	7
7	have been [adj] but for	6
8	have been [adj] enough for	6
9	have been [adj] [conj] for	6
10	have been [adj] enough for	6
11	have been [adj] [to-vb] for	6
12	have been [adj] [subord] for	5
13	have been [adj] but for	5
14	[vb mod] have been [adj] for	240
15	[modal v] have been [adj] for	240
16	would have been [adj] for	125
17	would have been [adj] for	123
18	[adv] have been [adj] for	56
19	must have been [adj] for	47
20	must have been [adj] for	47
21	not have been [adj] for	37
22	[not/n't] have been [adj] for	37
23	not have been [adj] for	29
24	may have been [adj] for	28
25	may have been [adj] for	28
26	might have been [adj] for	20
27	might have been [adj] for	20
28	[adv] have been [adj] for	19
29	could have been [adj] for	10
30	could have been [adj] for	10