SN4 ""

No	Pattern	Freq
1	at [det] [noun sg]	20645
2	at this [noun]	8171
3	at [det] time	7156
4	at [det] time	6299
5	at that [noun]	5194
6	at [det] [noun pl]	3550
7	at any [noun]	3325
8	at [det] stage	2959
9	at [det] stage	2840
10	at [det] point	2597
11	at [det] point	2492
12	at all [noun]	2045
13	at some [noun]	1806
14	at each [noun]	1698
15	at [det] moment	1302
16	at [det] moment	1267
17	at [det] level	1148
18	at [det] times	857
19	at [det] rate	785
20	at [det] rate	782
21	at [det] other	682
22	at [det] other	672
23	at [det] level	592
24	at [det] end	567
25	at [det] levels	556
26	at these [noun]	447
27	at [det] end	431
28	at such [noun]	298
29	at [det] cost	289
30	at [det] age	275