SN4 ""

No	Pattern	Freq
1	[pers pn] have [adv] been [vb pp] to	105
2	[pers pn] had [adv] been [verb] to	39
3	i have [adv] been [verb] to	38
4	[pers pn] have [adv] been [v-ing] to	35
5	it have [adv] been [verb] to	30
6	[pers pn] 've [adv] been [verb] to	29
7	[pers pn] have [adv] been [verb] to	28
8	[pers pn] have just been [verb] to	27
9	[pers pn] has [adv] been [verb] to	24
10	he have [adv] been [verb] to	21
11	she have [adv] been [verb] to	17
12	[pers pn] have never been [verb] to	16
13	they have [adv] been [verb] to	16
14	[pers pn] have [adv] been talk to	13
15	[pers pn] have [adv] been talking to	13
16	[pers pn] 'd [adv] been [verb] to	11
17	[pers pn] have also been [verb] to	10
18	we have [adv] been [verb] to	9
19	[pers pn] 's [adv] been [verb] to	9
20	[pers pn] have always been [verb] to	9
21	[pers pn] have [adv] been listen to	8
22	[pers pn] have now been [verb] to	8
23	[pers pn] have all been [verb] to	7
24	[pers pn] have [adv] been listening to	7
25	[pers pn] have [adv] been speak to	7
26	[pers pn] have [adv] been speaking to	6
27	you have [adv] been [verb] to	6
28	[pers pn] have [adv] been subjected to	6
29	[pers pn] have already been [verb] to	6
30	[pers pn] have ever been [verb] to	6