SN4 ""

No	Pattern	Freq
1	[pron] have been this	26
2	[vb mod] have been this	16
3	[pers pn] have been this	16
4	[modal v] have been this	16
5	it have been this	10
6	there have been this	10
7	there have been this	10
8	[ex0] have been this	10
9	it have been this	10
10	may have been this	6
11	may have been this	6
12	[noun] have been this	6
13	have [adv] been this	18
14	have [adv] been this	14
15	have never been this	7
16	have never been this	7
17	have always been this	5
18	have always been this	5
19	have been [verb] this	329
20	have been [v-ing] this	183
21	have been [prep] this	171
22	have been [prep] this	171
23	have been [vb pp] this	137
24	have been in this	59
25	have been in this	59
26	have been do this	49
27	have been doing this	44
28	have been [adj] this	32
29	have been on this	25
30	have been on this	25