SN4 ""

No	Pattern	Freq
1	[vb base] at a [adj] [noun]	184
2	[vb base] at a [adj] [noun sg]	181
3	[vb base] at a [adj] [noun]	159
4	[vb base] at a [adj] [noun]	148
5	[vb base] at an [adj] [noun]	36
6	look at a [adj] [noun]	26
7	[vb base] at a [adj -er] [noun]	23
8	[vb base] at a [adj] rate	21
9	[vb base] at a [adj] rate	21
10	[vb base] at a [adj] level	20
11	[vb base] at a [adj] level	20
12	arrive at a [adj] [noun]	16
13	[vb base] at a [adj] pace	15
14	[vb base] at a [adj] pace	15
15	[vb base] at a high [noun]	11
16	[vb base] at a early [noun]	11
17	[vb base] at a [adj] stage	9
18	[vb base] at a [adj] stage	9
19	[vb base] at a constant [noun]	7
20	walk at a [adj] [noun]	7
21	[vb base] at a high [noun]	7
22	[vb base] at a constant [noun]	7
23	[vb base] at a early [noun]	6
24	[vb base] at a [adj] point	6
25	[vb base] at a [adj] point	6
26	[vb base] at a low [noun]	5
27	[vb base] at a earlier [noun]	5
28	[vb base] at a single [noun]	5
29	[vb base] at a moderate [noun]	5
30	meet at a [adj] [noun]	5