SN4 ""

No	Pattern	Freq
1	be [vb pp] at a [adj] [noun sg]	588
2	be [vb pp] at a [adj] [noun]	457
3	be [vb pp] at a [adj] [noun]	241
4	be [vb pp] at a [adj -er] [noun]	142
5	was [vb pp] at a [adj] [noun]	97
6	is [vb pp] at a [adj] [noun]	86
7	be [vb pp] at a late [noun]	78
8	be [vb pp] at a later [noun]	77
9	be [vb pp] at a [adj] level	71
10	be [vb pp] at a [adj] level	71
11	be [vb pp] at a [adj] date	58
12	be [vb pp] at a [adj] date	58
13	were [vb pp] at a [adj] [noun]	57
14	are [vb pp] at a [adj] [noun]	48
15	been [vb pp] at a [adj] [noun]	48
16	be [vb pp] at a [adj] rate	44
17	be [vb pp] at a [adj] rate	44
18	be [vb pp] at a low [noun]	35
19	be [vb pp] at a high [noun]	34
20	being [vb pp] at a [adj] [noun]	32
21	be [vb pp] at a [adj] price	29
22	be [vb pp] at a [adj] price	29
23	be [vb pp] at a [adj] stage	25
24	be [vb pp] at a [adj] stage	25
25	be [vb pp] at a lower [noun]	24
26	be [vb pp] at a particular [noun]	23
27	be [vb pp] at a particular [noun]	23
28	be [vb pp] at a [adj] time	22
29	be [vb pp] at a [adj] time	22
30	be [vb pp] at a [adj] meeting	22