SN4 ""

No	Pattern	Freq
1	[noun] over a [adj] [noun sg] [prep]	265
2	[noun] over a [adj] [noun] [prep]	256
3	[noun] over a [adj] [noun] of	200
4	[noun sg] over a [adj] [noun] [prep]	190
5	[noun] over a [adj] period [prep]	97
6	[noun] over a [adj] period [prep]	97
7	[noun pl] over a [adj] [noun] [prep]	65
8	[noun] over a long [noun] [prep]	51
9	[noun] over a long [noun] [prep]	46
10	[noun] over a [adj] range [prep]	40
11	[noun] over a [adj] range [prep]	40
12	[noun] over a wide [noun] [prep]	36
13	[noun] over a wide [noun] [prep]	33
14	[noun] over a [adj] [noun] in	16
15	[noun] over a large [noun] [prep]	15
16	[noun] over a large [noun] [prep]	13
17	[noun] over a [adj] area [prep]	12
18	[noun] over a [adj] area [prep]	12
19	[noun] over a [adj -er] [noun] [prep]	11
20	[noun] over a [adj] number [prep]	10
21	[noun] over a [adj] [noun] for	10
22	[noun] over a [adj] number [prep]	10
23	[noun prp] over a [adj] [noun] [prep]	9
24	[noun] over a [adj] [noun] to	9
25	[noun] over a [adj] part [prep]	8
26	[noun] over a prolonged [noun] [prep]	8
27	[noun] over a prolonged [noun] [prep]	8
28	[noun] over a [adj] part [prep]	8
29	[noun] over a [adj] [noun] with	7
30	[noun] over a new [noun] [prep]	6