SN4 ""

No	Pattern	Freq
1	[noun] have been the	1752
2	[noun sg] have been the	1035
3	[pron] have been the	970
4	[modal v] have been the	840
5	[vb mod] have been the	840
6	[pers pn] have been the	548
7	[adj] have been the	436
8	[noun pl] have been the	408
9	[adv] have been the	346
10	[noun prp] have been the	295
11	[det] have been the	281
12	it have been the	274
13	it have been the	274
14	[verb] have been the	270
15	would have been the	264
16	would have been the	260
17	[adv] have been the	254
18	[Wh det] have been the	224
19	may have been the	177
20	may have been the	177
21	[conj] have been the	175
22	this have been the	158
23	this have been the	158
24	must have been the	147
25	must have been the	147
26	which have been the	142
27	which have been the	142
28	he have been the	124
29	he have been the	120
30	[adj] have been the	101