SN4 ""

No	Pattern	Freq
1	at the [adj] [conj]	417
2	at the [adj] [conj]	417
3	at the [adj] [coord]	368
4	at the [adj] and	321
5	at the [adj] and	321
6	at the [adj] [conj]	245
7	at the [num ord] [conj]	113
8	at the [adj] [subord]	44
9	at the [adj] or	33
10	at the [adj] or	33
11	at the [num] [conj]	20
12	at the [det] [conj]	19
13	at the [adj -est] [conj]	17
14	at the [adj] but	14
15	at the foreign [conj]	14
16	at the foreign [conj]	14
17	at the [adj] but	14
18	at the national [conj]	13
19	at the same [conj]	13
20	at the national [conj]	13
21	at the second [conj]	13
22	at the same [conj]	13
23	at the second [conj]	13
24	at the first [conj]	12
25	at the first [conj]	12
26	at the [adj] than	11
27	at the [adj] as	11
28	at the [adj] as	11
29	at the [adj] than	11
30	at the regional [conj]	9