SN4 ""

No	Pattern	Freq
1	[noun] have been the [noun]	1100
2	[noun sg] have been the [noun]	669
3	[pron] have been the [noun]	572
4	[vb mod] have been the [noun]	476
5	[modal v] have been the [noun]	476
6	[adj] have been the [noun]	304
7	[pers pn] have been the [noun]	303
8	[noun pl] have been the [noun]	266
9	[adv] have been the [noun]	227
10	[det] have been the [noun]	200
11	[adv] have been the [noun]	185
12	[verb] have been the [noun]	163
13	[Wh det] have been the [noun]	163
14	[noun prp] have been the [noun]	159
15	it have been the [noun]	156
16	it have been the [noun]	156
17	[conj] have been the [noun]	143
18	would have been the [noun]	140
19	would have been the [noun]	139
20	which have been the [noun]	109
21	this have been the [noun]	109
22	this have been the [noun]	109
23	which have been the [noun]	109
24	may have been the [noun]	107
25	may have been the [noun]	107
26	must have been the [noun]	71
27	must have been the [noun]	71
28	[adj] have been the [noun]	68
29	he have been the [noun]	67
30	he have been the [noun]	64