SN4 ""

No	Pattern	Freq
1	at [adv] the [noun]	805
2	at [adv] the [noun]	755
3	at [adv] the [noun sg]	638
4	at least the [noun]	518
5	at least the [noun]	518
6	at [adv] the [noun pl]	118
7	at once the [noun]	77
8	at once the [noun]	77
9	at [Wh adv] the [noun]	50
10	at how the [noun]	35
11	at how the [noun]	35
12	at [adv] the [noun prp]	34
13	at both the [noun]	33
14	at both the [noun]	33
15	at [adv] the time	32
16	at [adv] the time	32
17	at precisely the [noun]	26
18	at precisely the [noun]	26
19	at twice the [noun]	23
20	at twice the [noun]	23
21	at just the [noun]	17
22	at just the [noun]	17
23	at [adv] the [n mass]	15
24	at [adv] the possibility	13
25	at where the [noun]	13
26	at where the [noun]	13
27	at either the [noun]	12
28	at either the [noun]	12
29	at [adv] the possibility	12
30	at [adv] the rate	12