SN4 ""

No	Pattern	Freq
1	[verb] to have been [noun sg]	33
2	seem to have been [noun sg]	14
3	[vb -s] to have been [noun sg]	12
4	[vb pp] to have been [noun sg]	12
5	seems to have been [noun sg]	9
6	[adj] to have been [noun sg]	8
7	[adj] to have been [noun sg]	8
8	[pron] to have been [noun sg]	6
9	[vb base] to have been [noun sg]	6
10	appear to have been [noun sg]	6
11	[noun] to have been [noun sg]	5
12	to have been [art] [noun sg]	382
13	to have been [art] [noun sg]	382
14	to have been a [noun sg]	217
15	to have been a [noun sg]	181
16	to have been the [noun sg]	155
17	to have been the [noun sg]	155
18	to have been [adj] [noun sg]	65
19	to have been [prep] [noun sg]	61
20	to have been [prep] [noun sg]	61
21	to have been in [noun sg]	43
22	to have been in [noun sg]	43
23	to have been an [noun sg]	36
24	to have been [det] [noun sg]	34
25	to have been [adj] [noun sg]	28
26	to have been [verb] [noun sg]	20
27	to have been [pos pn] [noun sg]	17
28	to have been [pron] [noun sg]	17
29	to have been some [noun sg]	12
30	to have been his [noun sg]	12