SN4 ""

No	Pattern	Freq
1	[noun] having been	614
2	[noun sg] having been	360
3	[prep] having been	304
4	[prep] having been	304
5	[conj] having been	254
6	[subord] having been	177
7	[noun pl] having been	174
8	as having been	170
9	as having been	170
10	[adv] having been	156
11	[adv] having been	97
12	of having been	97
13	of having been	97
14	[pron] having been	81
15	[adj] having been	74
16	[coord] having been	72
17	[noun prp] having been	71
18	after having been	70
19	after having been	70
20	not having been	55
21	not having been	55
22	[not/n't] having been	55
23	and having been	54
24	and having been	54
25	[pos pn] having been	35
26	[pers pn] having been	34
27	[verb] having been	34
28	for having been	31
29	for having been	31
30	[det] having been	29