No | Pattern | Freq | Relations |
---|---|---|---|
1 | a brief period [prep] | 63 | |
2 | a brief period [prep] | 62 | |
3 | a brief period of | 34 | |
4 | a brief period of | 34 | |
5 | a brief period in | 11 | |
6 | a brief period in | 11 | |
7 | a brief period during | 7 | |
8 | a brief period during | 7 |