No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a [adj] period of time | 113 | |
2 | over a [adj] period [prep] time | 113 | |
3 | over a [adj] period of time | 113 | |
4 | over a long period [prep] time | 71 | |
5 | over a prolonged period [prep] time | 7 | |
6 | over a considerable period [prep] time | 7 | |
7 | over a short period [prep] time | 7 | |
8 | over a given period [prep] time | 5 |