SN4 ""

No	Pattern	Freq
1	[pron] [modal v] have been [noun]	392
2	[pers pn] [modal v] have been [noun]	250
3	it [modal v] have been [noun]	172
4	it [modal v] have been [noun]	172
5	[noun] [modal v] have been [noun]	158
6	[noun sg] [modal v] have been [noun]	107
7	[ex0] [modal v] have been [noun]	102
8	there [modal v] have been [noun]	102
9	there [modal v] have been [noun]	102
10	[adj] [modal v] have been [noun]	53
11	[det] [modal v] have been [noun]	43
12	[noun pl] [modal v] have been [noun]	35
13	[Wh det] [modal v] have been [noun]	31
14	they [modal v] have been [noun]	28
15	they [modal v] have been [noun]	23
16	that [modal v] have been [noun]	21
17	that [modal v] have been [noun]	21
18	he [modal v] have been [noun]	20
19	[conj] [modal v] have been [noun]	20
20	he [modal v] have been [noun]	20
21	what [modal v] have been [noun]	16
22	what [modal v] have been [noun]	16
23	[noun prp] [modal v] have been [noun]	16
24	which [modal v] have been [noun]	15
25	which [modal v] have been [noun]	15
26	[adv] [modal v] have been [noun]	14
27	[adv] [modal v] have been [noun]	14
28	that [modal v] have been [noun]	13
29	[that] [modal v] have been [noun]	13
30	that [modal v] have been [noun]	13