SN4 ""

No	Pattern	Freq
1	[verb] on at the [noun]	149
2	[v-ing] on at the [noun]	65
3	go on at the [noun]	56
4	going on at the [noun]	44
5	be on at the [noun]	28
6	[be] on at the [noun]	28
7	[noun] on at the [noun]	26
8	[vb past] on at the [noun]	24
9	[vb pp] on at the [noun]	20
10	stay on at the [noun]	18
11	[noun sg] on at the [noun]	18
12	[to-vb] on at the [noun]	17
13	[is] on at the [noun]	15
14	[adv] on at the [noun]	13
15	work on at the [noun]	12
16	working on at the [noun]	11
17	's on at the [noun]	10
18	[vb infin] on at the [noun]	10
19	[pron] on at the [noun]	10
20	[adv] on at the [noun]	10
21	to stay on at the [noun]	8
22	[vb base] on at the [noun]	8
23	carry on at the [noun]	7
24	[noun pl] on at the [noun]	7
25	[pers pn] on at the [noun]	7
26	was on at the [noun]	6
27	[was/were] on at the [noun]	6
28	it on at the [noun]	5
29	sign on at the [noun]	5
30	is on at the [noun]	5