SN4 ""

No	Pattern	Freq
1	at the [adj] [noun] and	748
2	at the [adj] [noun sg] and	586
3	at the [adj] [noun pl] and	136
4	at the [adj] time and	52
5	at the [adj] time and	48
6	at the right [noun] and	41
7	at the [adj] level and	35
8	at the [adj] level and	33
9	at the [adj] end and	32
10	at the [adj] end and	32
11	at the [adj] [noun prp] and	20
12	at the old [noun] and	20
13	at the royal [noun] and	19
14	at the national [noun] and	17
15	at the other [noun] and	17
16	at the [adj] rate and	14
17	at the front [noun] and	13
18	at the [adj] rate and	12
19	at the present [noun] and	11
20	at the local [noun] and	11
21	at the wrong [noun] and	11
22	at the [adj] table and	10
23	at the [adj] sky and	9
24	at the [adj] stage and	9
25	at the [adj] door and	9
26	at the [adj] table and	9
27	at the [adj] stage and	9
28	at the open [noun] and	9
29	at the [adj] door and	9
30	at the [adj] sky and	8