SN4 ""

No	Pattern	Freq
1	be [adj] at the [adj] [noun]	235
2	be [adj] at the [adj] [noun sg]	226
3	be [adj] at the [adj] [noun]	180
4	be [adj] at the [adj] [noun]	61
5	was [adj] at the [adj] [noun]	57
6	be [adj] at the [adj] time	53
7	be [adj] at the [adj] time	51
8	be [adj] at the same [noun]	47
9	be [adj] at the [det] [noun]	47
10	be [adj] at the same [noun]	47
11	is [adj] at the [adj] [noun]	40
12	were [adj] at the [adj] [noun]	35
13	are [adj] at the [adj] [noun]	35
14	be available at the [adj] [noun]	32
15	be available at the [adj] [noun]	32
16	be [adj] at the [adj] [noun pl]	32
17	be [adj] at the [num ord] [noun]	19
18	be present at the [adj] [noun]	18
19	be [adj] at the [adj] level	18
20	be present at the [adj] [noun]	18
21	be [det] at the [adj] [noun]	16
22	be [adj] at the [adj] level	16
23	be surprised at the [adj] [noun]	13
24	be surprised at the [adj] [noun]	13
25	been [adj] at the [adj] [noun]	11
26	be concerned at the [adj] [noun]	11
27	be concerned at the [adj] [noun]	11
28	be [adj] at the [adj] end	10
29	be all at the [adj] [noun]	9
30	be all at the [adj] [noun]	9