SN4 ""

No	Pattern	Freq
1	at the [noun sg] [vb past]	678
2	at the [noun] had	121
3	at the time [vb past]	107
4	at the time [vb past]	107
5	at the [noun prp] [vb past]	81
6	at the [noun] said	57
7	at the [noun] did	47
8	at the [noun pl] [vb past]	47
9	at the door [vb past]	25
10	at the door [vb past]	25
11	at the [noun] ground	24
12	at the meeting [vb past]	22
13	at the meeting [vb past]	21
14	at the [noun] included	20
15	at the hospital [vb past]	20
16	at the hospital [vb past]	20
17	at the [noun] told	18
18	at the back [vb past]	18
19	at the conference [vb past]	18
20	at the conference [vb past]	18
21	at the back [vb past]	18
22	at the [noun] seemed	17
23	at the table [vb past]	16
24	at the manor [vb past]	15
25	at the manor [vb past]	15
26	at the table [vb past]	15
27	at the [noun] made	13
28	at the bottom [vb past]	12
29	at the bottom [vb past]	12
30	at the school [vb past]	11