SN4 ""

No	Pattern	Freq
1	[noun] over a [adj] [noun]	969
2	[noun] over a [adj] [noun sg]	919
3	[noun] over a [adj] [noun]	806
4	[noun sg] over a [adj] [noun]	645
5	[noun] over a [adj] period	289
6	[noun] over a [adj] period	289
7	[noun pl] over a [adj] [noun]	276
8	[noun] over a long [noun]	139
9	[noun] over a long [noun]	107
10	[noun] over a wide [noun]	86
11	[noun] over a [num] [noun]	80
12	[noun] over a wide [noun]	73
13	[noun] over a [adj] area	67
14	[noun] over a [adj] area	67
15	[noun] over a [adj -er] [noun]	61
16	[noun] over a [adj] year	53
17	[noun] over a [adj] year	49
18	[noun] over a [adj] range	42
19	[noun] over a [adj] range	42
20	[noun] over a large [noun]	33
21	[noun] over a longer [noun]	32
22	[noun] over a [adj] [noun pl]	30
23	[noun] over a large [noun]	27
24	[noun prp] over a [adj] [noun]	25
25	[n mass] over a [adj] [noun]	22
26	[noun] over a few [noun]	22
27	[noun] over a [det] [noun]	22
28	[noun] over a few [noun]	22
29	[noun] over a [adj] heat	20
30	[noun] over a [adj] heat	20