SN4 ""

No	Pattern	Freq
1	[pron] have been [v-ing] on the	103
2	[pers pn] have been [v-ing] on the	70
3	[noun] have been [v-ing] on the	47
4	who have been [v-ing] on the	24
5	[Wh pn] have been [v-ing] on the	24
6	who have been [v-ing] on the	24
7	[noun prp] have been [v-ing] on the	20
8	he have been [v-ing] on the	16
9	he have been [v-ing] on the	16
10	[noun sg] have been [v-ing] on the	15
11	i have been [v-ing] on the	13
12	i have been [v-ing] on the	13
13	we have been [v-ing] on the	12
14	we have been [v-ing] on the	12
15	[noun pl] have been [v-ing] on the	12
16	she have been [v-ing] on the	12
17	she have been [v-ing] on the	11
18	they have been [v-ing] on the	10
19	they have been [v-ing] on the	10
20	[vb mod] have been [v-ing] on the	8
21	[modal v] have been [v-ing] on the	8
22	[Wh det] have been [v-ing] on the	7
23	it have been [v-ing] on the	6
24	it have been [v-ing] on the	6
25	have [adv] been [v-ing] on the	10
26	have [adv] been [v-ing] on the	7
27	have been [v-ing] [adv] on the	24
28	have been [v-ing] [noun] on the	21
29	have been [v-ing] [adv prt] on the	16
30	have been [v-ing] [noun sg] on the	16