SN4 ""

No	Pattern	Freq
1	[verb] to have [been] at	23
2	[vb -s] to have [been] at	10
3	seem to have [been] at	8
4	[vb pp] to have [been] at	7
5	seems to have [been] at	6
6	[adj] to have [been] at	6
7	appear to have [been] at	6
8	[adj] to have [been] at	5
9	to have [been] [verb] at	65
10	to have [been] [vb pp] at	60
11	to have [been] [adj] at	16
12	to have [been] [adj] at	16
13	to have [been] [adv] at	6
14	to have [been] present at	5
15	to have [been] present at	5
16	to have [been] effected at	5
17	to have [been] effect at	5
18	to have [been] [v-ing] at	5
19	to have [been] at [art]	11
20	to have [been] at [art]	11
21	to have [been] at the	10
22	to have [been] at the	10
23	to have [been] at [adj]	7
24	to have [been] at [noun]	7
25	to have [been] at [adv]	5
26	to have [been] at least	5
27	to have [been] at least	5
28	to have [been] at [noun sg]	5
29	to have [been] at [adv]	5