SN4 ""

No	Pattern	Freq
1	[verb] back at the [noun]	303
2	[vb past] back at the [noun]	144
3	look back at the [noun]	131
4	looked back at the [noun]	69
5	[noun] back at the [noun]	58
6	be back at the [noun]	58
7	[be] back at the [noun]	58
8	[v-ing] back at the [noun]	47
9	arrive back at the [noun]	39
10	[noun sg] back at the [noun]	39
11	[adv] back at the [noun]	37
12	[was/were] back at the [noun]	36
13	[pron] back at the [noun]	34
14	[to-vb] back at the [noun]	32
15	[adv] back at the [noun]	31
16	[vb base] back at the [noun]	29
17	[pers pn] back at the [noun]	28
18	looking back at the [noun]	27
19	was back at the [noun]	26
20	[vb pp] back at the [noun]	24
21	arrived back at the [noun]	24
22	glance back at the [noun]	19
23	look back at the [noun]	19
24	[vb -s] back at the [noun]	16
25	glanced back at the [noun]	16
26	[noun pl] back at the [noun]	15
27	hit back at the [noun]	13
28	[vb infin] back at the [noun]	11
29	be back at the [noun]	10
30	[be] back at the [noun]	10