SN4 ""

No	Pattern	Freq
1	at the [noun] [prep]	47656
2	at the [noun sg] [prep]	44606
3	at the [noun] of	41276
4	at the [noun] of	41276
5	at the end [prep]	9472
6	at the end [prep]	9415
7	at the time [prep]	2960
8	at the time [prep]	2957
9	at the [noun pl] [prep]	2576
10	at the beginning [prep]	2255
11	at the beginning [prep]	2252
12	at the [noun] in	1703
13	at the [noun] in	1703
14	at the top [prep]	1650
15	at the top [prep]	1631
16	at the age [prep]	1463
17	at the age [prep]	1444
18	at the back [prep]	1259
19	at the back [prep]	1254
20	at the expense [prep]	1089
21	at the expense [prep]	1089
22	at the bottom [prep]	1077
23	at the bottom [prep]	1077
24	at the start [prep]	1063
25	at the start [prep]	1061
26	at the heart [prep]	887
27	at the heart [prep]	884
28	at the university [prep]	855
29	at the university [prep]	837
30	at the centre [prep]	804