No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a [adj] period [prep] time | 123 | |
2 | over a [adj] period [prep] time | 116 | |
3 | [prep] a long period [prep] time | 88 | |
4 | over a long period [prep] [noun] | 78 | |
5 | over a long period [prep] time | 77 | |
6 | over a long [noun sg] [prep] time | 71 | |
7 | over [art] long period [prep] time | 71 | |
8 | over a long period [prep] time | 71 | |
9 | over a long [noun] [prep] time | 71 | |
10 | over a long period [prep] time | 71 |