SN4 ""

No	Pattern	Freq
1	[noun] [vb pp] at the [noun sg]	1470
2	[noun sg] [vb pp] at the [noun sg]	861
3	[noun pl] [vb pp] at the [noun sg]	589
4	[noun] [vb pp] at the end	181
5	[noun] [vb pp] at the time	104
6	[noun] [vb pp] at the beginning	83
7	[noun] held at the [noun sg]	58
8	[noun] made at the [noun sg]	56
9	[noun] aimed at the [noun sg]	56
10	[noun] [vb pp] at the top	34
11	[noun] given at the [noun sg]	31
12	[noun] based at the [noun sg]	27
13	[noun] [vb pp] at the back	27
14	[noun] [vb pp] at the university	27
15	[noun] issued at the [noun sg]	25
16	[noun] found at the [noun sg]	25
17	[noun] taken at the [noun sg]	24
18	[noun] [vb pp] at the start	23
19	[noun] gathered at the [noun sg]	21
20	[noun] left at the [noun sg]	20
21	[noun] [vb pp] at the weekend	19
22	[noun] [vb pp] at the door	19
23	[noun] shown at the [noun sg]	18
24	[noun] [vb pp] at the bottom	18
25	[noun] [vb pp] at the centre	17
26	[n mass] [vb pp] at the [noun sg]	17
27	[noun] used at the [noun sg]	17
28	[noun] [vb pp] at the meeting	17
29	[noun] [vb pp] at the scene	16
30	[noun] presented at the [noun sg]	15