SN4 ""

No	Pattern	Freq
1	[pron] have [been] at [det]	24
2	[pers pn] have [been] at [det]	21
3	[vb mod] have [been] at [det]	13
4	[modal v] have [been] at [det]	13
5	[noun] have [been] at [det]	9
6	they have [been] at [det]	6
7	[adv] have [been] at [det]	6
8	they have [been] at [det]	6
9	must have [been] at [det]	5
10	must have [been] at [det]	5
11	have [adv] [been] at [det]	13
12	have not [been] at [det]	12
13	have [not/n't] [been] at [det]	12
14	have not [been] at [det]	9
15	have [pers pn] [been] at [det]	5
16	have [pron] [been] at [det]	5
17	have [been] [verb] at [det]	153
18	have [been] [vb pp] at [det]	121
19	have [been] [v-ing] at [det]	31
20	have [been] [adj] at [det]	20
21	have [been] look at [det]	20
22	have [been] [adj] at [det]	19
23	have [been] looking at [det]	18
24	have [been] [adv] at [det]	12
25	have [been] [adv] at [det]	10
26	have [been] make at [det]	8
27	have [been] there at [det]	8
28	have [been] there at [det]	8
29	have [been] made at [det]	7
30	have [been] [indef pn] at [det]	6