SN4 ""

No	Pattern	Freq
1	[verb] back to the [adj] [noun sg]	524
2	[verb] back to the [adj] [noun]	464
3	go back to the [adj] [noun]	216
4	[verb] back to the [num ord] [noun]	151
5	[v-ing] back to the [adj] [noun]	141
6	[verb] back to the [adj] [noun pl]	133
7	[vb past] back to the [adj] [noun]	119
8	[vb -s] back to the [adj] [noun]	115
9	[verb] back to the [adj] century	107
10	[verb] back to the [adj] century	106
11	date back to the [adj] [noun]	95
12	[vb pp] back to the [adj] [noun]	89
13	[vb base] back to the [adj] [noun]	84
14	[to-vb] back to the [adj] [noun]	72
15	[vb infin] back to the [adj] [noun]	56
16	goes back to the [adj] [noun]	48
17	dating back to the [adj] [noun]	45
18	get back to the [adj] [noun]	40
19	going back to the [adj] [noun]	39
20	[verb] back to the old [noun]	38
21	[verb] back to the old [noun]	38
22	come back to the [adj] [noun]	37
23	turn back to the [adj] [noun]	35
24	went back to the [adj] [noun]	35
25	dates back to the [adj] [noun]	34
26	to go back to the [adj] [noun]	29
27	go back to the [adj] [noun]	28
28	go back to the [adj] [noun]	27
29	[verb] back to the [det] [noun]	26
30	[verb] back to the first [noun]	25