SN4 ""

No	Pattern	Freq
1	[noun pl] at the [noun sg] [vb past]	137
2	[noun pl] at the [noun] had	31
3	[noun pl] at the time [vb past]	18
4	[noun pl] at the time [vb past]	18
5	[noun pl] at the [noun pl] [vb past]	11
6	[noun pl] at the [noun prp] [vb past]	10
7	[noun pl] at the [noun] included	10
8	[noun pl] at the [noun] did	9
9	[noun pl] at the [noun] said	9
10	[noun pl] at the conference [vb past]	9
11	[noun pl] at the conference [vb past]	9
12	speakers at the [noun] [vb past]	8
13	men at the [noun] [vb past]	6
14	[noun pl] at the meeting [vb past]	6
15	[noun pl] at the school [vb past]	5
16	representatives at the [noun] [vb past]	5
17	workers at the [noun] [vb past]	5
18	[noun pl] at the meeting [vb past]	5
19	[noun pl] at the school [vb past]	5