SN4 ""

No	Pattern	Freq
1	had been on [noun sg] [prep]	46
2	has been on [noun sg] [prep]	32
3	have been on [noun sg] for	32
4	have been on [noun sg] [prep]	23
5	have been on [noun sg] in	21
6	have been on [noun sg] at	17
7	have been on [noun sg] since	16
8	have been on strike [prep]	14
9	have been on duty [prep]	13
10	have been on loan [prep]	10
11	have been on [noun sg] to	10
12	have been on [noun sg] [prep]	9
13	have been on trial [prep]	9
14	have been on sale [prep]	8
15	have been on holiday [prep]	8
16	have been on [noun sg] of	8
17	have been on [noun sg] with	6
18	having been on [noun sg] [prep]	5
19	'd been on [noun sg] [prep]	5
20	have been on [noun sg] on	5
21	have been on offer [prep]	5
22	have been on top [prep]	5