SN4 ""

No	Pattern	Freq
1	at [adv] [prep]	3518
2	at least [prep]	2669
3	at least [prep]	2669
4	at [adv] in	1209
5	at [adv] for	414
6	at [adv] to	402
7	at [adv] on	391
8	at once [prep]	278
9	at once [prep]	278
10	at [adv] of	164
11	at [adv] at	154
12	at [adv prt] [prep]	138
13	at [adv] with	133
14	at [adv] until	132
15	at [adv] by	128
16	at up [prep]	112
17	at up [prep]	112
18	at [adv] from	93
19	at 7.30pm [prep]	45
20	at 7.30pm [prep]	45
21	at [adv] after	45
22	at [adv] since	38
23	at [adv] as	36
24	at just [prep]	35
25	at just [prep]	35
26	at 2pm [prep]	30
27	at 2pm [prep]	30
28	at [adv] into	28
29	at 10am [prep]	27
30	at [adv] within	27