SN4 ""

No	Pattern	Freq
1	[vb pp] [prep] the past	595
2	[vb pp] in the past	250
3	[vb pp] in the past	250
4	[vb pp] over the past	208
5	[vb pp] over the past	208
6	[vb pp] for the past	56
7	[vb pp] for the past	56
8	[vb pp] during the past	50
9	[vb pp] during the past	50
10	doubled [prep] the past	30
11	made [prep] the past	26
12	done [prep] the past	23
13	changed [prep] the past	16
14	developed [prep] the past	13
15	introduced [prep] the past	12
16	[vb pp] within the past	10
17	[vb pp] within the past	10
18	had [prep] the past	10
19	achieved [prep] the past	10
20	increased [prep] the past	9
21	happened [prep] the past	9
22	used [prep] the past	9
23	held [prep] the past	8
24	died [prep] the past	7
25	seen [prep] the past	7
26	declined [prep] the past	7
27	improved [prep] the past	6
28	lost [prep] the past	6
29	occurred [prep] the past	6
30	tripled [prep] the past	6