SN4 ""

No	Pattern	Freq
1	be [verb] at the [adj] level	108
2	[be] [vb pp] at the [adj] level	98
3	[be] [verb] at the [adj] level	97
4	[be] [verb] at the [adj] level	72
5	be [verb] at the [adj] level	43
6	[be] [verb] at the [adj] level	43
7	[be] [verb] at the [adj -est] level	21
8	[is] [verb] at the [adj] level	21
9	is [verb] at the [adj] level	20
10	[be] [verb] at the high level	19
11	[be] [verb] at the highest level	18
12	[am/are] [verb] at the [adj] level	16
13	are [verb] at the [adj] level	16
14	[was/were] [verb] at the [adj] level	11
15	[be] [verb] at the [adj] levels	11
16	[been] [verb] at the [adj] level	9
17	[be] [verb] at the local level	9
18	been [verb] at the [adj] level	9
19	[be] [verb] at the local level	9
20	[being] [verb] at the [adj] level	8
21	[be] [verb] at the [det] level	8
22	[be] [verb] at the same level	8
23	[be] [verb] at the same level	8
24	being [verb] at the [adj] level	8
25	was [verb] at the [adj] level	8
26	[be] [v-ing] at the [adj] level	7
27	[be] [verb] at the national level	6
28	[be] [verb] at the low level	6
29	[be] maintained at the [adj] level	6
30	[be] [verb] at the national level	6