SN4 ""

No	Pattern	Freq
1	[noun sg] over the past	461
2	[noun sg] in the past	325
3	[noun sg] for the past	291
4	[noun sg] of the past	183
5	[noun sg] during the past	107
6	time [prep] the past	26
7	country [prep] the past	24
8	experience [prep] the past	17
9	[noun sg] within the past	15
10	place [prep] the past	14
11	industry [prep] the past	14
12	history [prep] the past	14
13	area [prep] the past	13
14	work [prep] the past	13
15	government [prep] the past	12
16	progress [prep] the past	11
17	business [prep] the past	10
18	research [prep] the past	10
19	record [prep] the past	10
20	course [prep] the past	9
21	development [prep] the past	9
22	life [prep] the past	9
23	year [prep] the past	9
24	rate [prep] the past	8
25	home [prep] the past	8
26	performance [prep] the past	7
27	club [prep] the past	7
28	service [prep] the past	7
29	evidence [prep] the past	7
30	education [prep] the past	7