SN4 ""

No	Pattern	Freq
1	[verb] back [prep] the [adj]	1691
2	[verb] back [prep] the [adj]	1228
3	[verb] back to the [adj]	887
4	[vb past] back [prep] the [adj]	427
5	[v-ing] back [prep] the [adj]	348
6	go back [prep] the [adj]	335
7	[vb pp] back [prep] the [adj]	254
8	[verb] back [prep] the [num ord]	251
9	[vb -s] back [prep] the [adj]	188
10	[vb base] back [prep] the [adj]	182
11	[to-vb] back [prep] the [adj]	171
12	date back [prep] the [adj]	151
13	[verb] back into the [adj]	151
14	[verb] back [prep] the [num]	136
15	[vb infin] back [prep] the [adj]	121
16	[verb] back on the [adj]	118
17	look back [prep] the [adj]	117
18	come back [prep] the [adj]	111
19	[verb] back in the [adj]	108
20	[verb] back from the [adj]	101
21	get back [prep] the [adj]	81
22	[verb] back at the [adj]	80
23	dating back [prep] the [adj]	73
24	went back [prep] the [adj]	67
25	going back [prep] the [adj]	67
26	goes back [prep] the [adj]	65
27	[verb] back [prep] the old	61
28	[verb] back [prep] the old	60
29	[verb] back [prep] the early	57
30	dates back [prep] the [adj]	49