SN4 ""

No	Pattern	Freq
1	[prep] [det] at the [noun]	213
2	[prep] [det] at the [noun sg]	191
3	[prep] [det] at the [adj]	43
4	[prep] [det] at the time	32
5	[prep] [det] at the time	32
6	[prep] [det] at the moment	27
7	[prep] [det] at the moment	27
8	[prep] [det] at the [adj]	22
9	[prep] [det] at the [noun prp]	17
10	[prep] [det] at the top	14
11	[prep] [det] at the top	14
12	[prep] [det] at the end	12
13	[prep] [det] at the end	11
14	[prep] [det] at the bottom	10
15	[prep] [det] at the bottom	10
16	[prep] [det] at the beginning	9
17	[prep] [det] at the beginning	9
18	[prep] [det] at the same	9
19	[prep] [det] at the same	9
20	[prep] [det] at the [det]	9
21	[prep] [det] at the [adj -er]	8
22	[prep] [det] at the centre	7
23	[prep] [det] at the centre	7
24	[prep] [det] at the level	5
25	[prep] [det] at the level	5
26	[prep] [det] at the [noun pl]	5
27	[noun] [prep] [det] at the	90
28	[noun sg] [prep] [det] at the	69
29	[verb] [prep] [det] at the	66
30	[adj] [prep] [det] at the	46