SN4 ""

No	Pattern	Freq
1	[vb pp] over the [num ord] [adj] years	170
2	[vb pp] over the [num ord] [num] years	139
3	[vb pp] [prep] the [num ord] four years	14
4	[vb pp] [prep] the [num ord] four years	14
5	[vb pp] over the [num ord] four [noun]	10
6	[vb pp] over the [num ord] four [noun pl]	10
7	[vb pp] over the [adj] four years	10
8	[verb] over the [num ord] four years	9
9	[vb pp] over the [num ord] four years	6
10	[vb pp] over [art] [num ord] four years	6
11	[vb pp] over the [num ord] four years	6
12	[vb pp] over the [num ord] four years	6
13	[vb pp] over [art] [num ord] four years	6
14	[vb pp] over the [num ord] four year	6