SN4 ""

No	Pattern	Freq
1	[verb] at [prep]	1186
2	[vb pp] at [prep]	742
3	look at [prep]	385
4	[verb] at in	275
5	[verb] at in	275
6	looked at [prep]	209
7	[verb] at by	189
8	[verb] at by	189
9	[vb past] at [prep]	160
10	arrive at [prep]	133
11	[v-ing] at [prep]	114
12	[verb] at about	114
13	[verb] at about	114
14	arrived at [prep]	104
15	[verb] at from	101
16	[verb] at from	101
17	[verb] at between	92
18	[verb] at between	92
19	[verb] at half-past	72
20	[verb] at half-past	72
21	meet at [prep]	62
22	[to-vb] at [prep]	61
23	met at [prep]	61
24	estimate at [prep]	60
25	estimated at [prep]	59
26	[verb] at for	57
27	[verb] at for	57
28	looked at [prep]	56
29	[verb] at at	51
30	[verb] at at	51