SN4 ""

No	Pattern	Freq
1	[vb mod] [adv] have been on	17
2	[modal v] [adv] have been on	17
3	[adv] [adv] have been on	5
4	[adv] [pron] have been on	21
5	[adv] [pers pn] have been on	20
6	[adv] i have been on	7
7	[adv] i have been on	7
8	[adv] [modal v] have been on	5
9	[adv] [noun] have been on	5
10	[adv] [vb mod] have been on	5
11	[adv] have been [verb] on	52
12	[adv] have been [vb pp] on	49
13	[adv] have been based on	12
14	[adv] have been base on	12
15	[adv] have been [adj] on	7
16	[adv] have been [adj] on	5
17	[adv] have been on [art]	17
18	[adv] have been on [art]	17
19	[adv] have been on the	16
20	[adv] have been on the	16
21	[adv] have been on [noun]	8
22	[adv] have been on [noun sg]	6
23	[adv] have been on [adj]	6