SN4 ""

No	Pattern	Freq
1	have been [verb] on	742
2	have been [v-ing] on	401
3	have been [vb pp] on	338
4	have been go on	267
5	have been going on	264
6	had been [verb] on	226
7	has been [verb] on	204
8	have been [verb] on	104
9	's been [verb] on	88
10	have been take on	55
11	have been taken on	51
12	have been work on	50
13	have been working on	47
14	have been [verb] on	43
15	've been [verb] on	41
16	have been pass on	35
17	have been passed on	35
18	have been carry on	29
19	'd been [verb] on	20
20	have been carried on	19
21	have been put on	19
22	have been put on	18
23	have been laid on	14
24	have been lay on	14
25	have been left on	10
26	have been carrying on	10
27	have been leave on	10
28	to have been [verb] on	10
29	have been get on	9
30	have been getting on	9