SN4 ""

No	Pattern	Freq
1	[prep] the period	3478
2	[prep] a period	2137
3	over [art] period	991
4	for [art] period	941
5	of [art] period	930
6	in [art] period	854
7	during [art] period	793
8	after [art] period	185
9	to [art] period	161
10	throughout [art] period	120
11	from [art] period	105
12	within [art] period	100
13	with [art] period	83
14	through [art] period	82
15	as [art] period	54
16	on [art] period	50
17	by [art] period	38
18	at [art] period	34
19	about [art] period	22
20	into [art] period	16
21	before [art] period	11
22	beyond [art] period	11
23	[prep] every period	9
24	including [art] period	7
25	until [art] period	6
26	against [art] period	5