SN4 ""

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