SN4 ""

No	Pattern	Freq
1	at the [adj] [noun] and	1037
2	at the [adj] [noun sg] and	842
3	at the [adj] [noun] and	748
4	at the [adj] [noun pl] and	164
5	at the [adj] time and	136
6	at the [adj] time and	130
7	at the [det] [noun] and	127
8	at the same [noun] and	123
9	at the same [noun] and	123
10	at the [num ord] [noun] and	107
11	at the [adj] level and	47
12	at the last [noun] and	45
13	at the last [noun] and	45
14	at the [adj] level and	42
15	at the right [noun] and	41
16	at the right [noun] and	41
17	at the [adj] end and	35
18	at the [adj] end and	35
19	at the [adj] rate and	27
20	at the first [noun] and	25
21	at the first [noun] and	25
22	at the [adj] moment and	24
23	at the [adj] moment and	24
24	at the [adj] [noun prp] and	22
25	at the [adj] rate and	22
26	at the [adj -est] [noun] and	22
27	at the old [noun] and	20
28	at the old [noun] and	20
29	at the royal [noun] and	19
30	at the royal [noun] and	19