SN4 ""

No	Pattern	Freq
1	[modal v] [adv] have been [det] [noun]	52
2	[vb mod] [adv] have been [det] [noun]	52
3	would [adv] have been [det] [noun]	20
4	would [adv] have been [det] [noun]	20
5	[verb] [adv] have been [det] [noun]	11
6	may [adv] have been [det] [noun]	8
7	could [adv] have been [det] [noun]	8
8	may [adv] have been [det] [noun]	8
9	[noun] [adv] have been [det] [noun]	8
10	could [adv] have been [det] [noun]	8
11	must [adv] have been [det] [noun]	6
12	[adv] [adv] have been [det] [noun]	6
13	[noun pl] [adv] have been [det] [noun]	6
14	[adv] [adv] have been [det] [noun]	6
15	must [adv] have been [det] [noun]	6
16	[adv] [pron] have been [det] [noun]	52
17	[adv] there have been [det] [noun]	47
18	[adv] there have been [det] [noun]	47
19	[adv] [ex0] have been [det] [noun]	47
20	[adv] [verb] have been [det] [noun]	8
21	[adv] [adv] have been [det] [noun]	6
22	[adv] [adv] have been [det] [noun]	6
23	[adv] [vb infin] have been [det] [noun]	6
24	[adv] [modal v] have been [det] [noun]	5
25	[adv] [vb mod] have been [det] [noun]	5
26	[adv] [pers pn] have been [det] [noun]	5
27	[adv] have [adv] been [det] [noun]	6
28	[adv] have [pron] been [det] [noun]	5
29	[adv] have been [prep] [det] [noun]	30
30	[adv] have been [prep] [det] [noun]	30