SN4 ""

No	Pattern	Freq
1	[verb] back on the [adj] [noun]	89
2	[vb past] back on the [adj] [noun]	29
3	[be] back on the [adj] [noun]	26
4	be back on the [adj] [noun]	26
5	[to-vb] back on the [adj] [noun]	22
6	fall back on the [adj] [noun]	19
7	look back on the [adj] [noun]	16
8	[noun] back on the [adj] [noun]	14
9	[v-ing] back on the [adj] [noun]	12
10	[noun sg] back on the [adj] [noun]	11
11	come back on the [adj] [noun]	9
12	to fall back on the [adj] [noun]	9
13	[vb pp] back on the [adj] [noun]	8
14	get back on the [adj] [noun]	7
15	[am/are] back on the [adj] [noun]	7
16	[was/were] back on the [adj] [noun]	7
17	[vb infin] back on the [adj] [noun]	7
18	[pron] back on the [adj] [noun]	7
19	[vb base] back on the [adj] [noun]	6
20	[be] back on the [adj] [noun]	6
21	be back on the [adj] [noun]	6
22	[adv] back on the [adj] [noun]	6
23	[is] back on the [adj] [noun]	6
24	are back on the [adj] [noun]	6
25	is back on the [adj] [noun]	6
26	looked back on the [adj] [noun]	6
27	lie back on the [adj] [noun]	5
28	looking back on the [adj] [noun]	5
29	[adv] back on the [adj] [noun]	5
30	[pers pn] back on the [adj] [noun]	5