SN4 ""

No	Pattern	Freq
1	[verb] to have been [vb pp] for	58
2	[vb pp] to have been [vb pp] for	24
3	seem to have been [vb pp] for	17
4	appear to have been [vb pp] for	12
5	[vb base] to have been [vb pp] for	11
6	[vb -s] to have been [vb pp] for	10
7	seem to have been [vb pp] for	10
8	[adv] to have been [vb pp] for	7
9	[adj] to have been [vb pp] for	7
10	[vb infin] to have been [vb pp] for	7
11	say to have been [vb pp] for	6
12	[vb past] to have been [vb pp] for	6
13	think to have been [vb pp] for	5
14	seems to have been [vb pp] for	5
15	appears to have been [vb pp] for	5
16	said to have been [vb pp] for	5
17	[adj] to have been [vb pp] for	5
18	[noun] to have been [vb pp] for	5
19	thought to have been [vb pp] for	5
20	[noun sg] to have been [vb pp] for	5
21	to have been [vb pp] [adv] for	7
22	to have been [vb pp] [adv prt] for	5
23	to have been [vb pp] for [art]	23
24	to have been [vb pp] for [art]	23
25	to have been [vb pp] for [noun]	21
26	to have been [vb pp] for [adj]	18
27	to have been [vb pp] for the	17
28	to have been [vb pp] for the	17
29	to have been [vb pp] for [noun sg]	12
30	to have been [vb pp] for [adj]	9