SN4 ""

No	Pattern	Freq
1	[to-vb] at [det] [noun sg]	430
2	[to-vb] at this [noun sg]	177
3	[to-vb] at that [noun sg]	78
4	[to-vb] at any [noun sg]	75
5	to look at [det] [noun sg]	71
6	[to-vb] at [det] time	67
7	[to-vb] at [det] stage	61
8	[to-vb] at [det] point	51
9	[to-vb] at some [noun sg]	45
10	[to-vb] at each [noun sg]	33
11	[to-vb] at [det] moment	22
12	[to-vb] at [det] level	19
13	to say at [det] [noun sg]	18
14	to do at [det] [noun sg]	18
15	[to-vb] at [det] other	17
16	to arrive at [det] [noun sg]	16
17	[to-vb] at another [noun sg]	15
18	to go at [det] [noun sg]	10
19	[to-vb] at [det] juncture	9
20	to work at [det] [noun sg]	8
21	to get at [det] [noun sg]	8
22	[to-vb] at [det] rate	7
23	[to-vb] at [det] speed	7
24	[to-vb] at [det] price	7
25	to stop at [det] [noun sg]	6
26	to see at [det] [noun sg]	6
27	[to-vb] at such [noun sg]	5
28	to make at [det] [noun sg]	5
29	to retire at [det] [noun sg]	5
30	[to-vb] at [det] age	5