SN4 ""

No	Pattern	Freq
1	at the [noun sg] of	39413
2	at the end [prep]	9415
3	at the time [prep]	2957
4	at the beginning [prep]	2252
5	at the top [prep]	1630
6	at the age [prep]	1444
7	at the [noun sg] in	1288
8	at the back [prep]	1254
9	at the expense [prep]	1089
10	at the bottom [prep]	1077
11	at the start [prep]	1061
12	at the heart [prep]	884
13	at the university [prep]	837
14	at the centre [prep]	800
15	at the foot [prep]	587
16	at the [noun sg] on	587
17	at the [noun sg] with	580
18	at the level [prep]	558
19	at the [noun sg] for	544
20	at the head [prep]	492
21	at the [noun sg] to	424
22	at the edge [prep]	377
23	at the height [prep]	356
24	at the moment [prep]	348
25	at the side [prep]	346
26	at the [noun sg] at	340
27	at the base [prep]	328
28	at the front [prep]	325
29	at the thought [prep]	298
30	at the turn [prep]	294