No | Pattern | Freq | Relations |
---|---|---|---|
1 | in a [adj] period of time | 15 | |
2 | in a [adj] period [prep] time | 15 | |
3 | in a [adj] period [prep] time | 15 | |
4 | in a [adj] period [prep] time | 14 | |
5 | in a short period [prep] time | 9 | |
6 | in a short period [prep] time | 8 |