No | Pattern | Freq | Relations |
---|---|---|---|
1 | a [adj] period in | 124 | |
2 | a [adj] period in | 112 | |
3 | an [adj] period in | 18 | |
4 | a short period in | 13 | |
5 | a short period in | 13 | |
6 | a brief period in | 11 | |
7 | a brief period in | 11 | |
8 | a long period in | 9 | |
9 | a long period in | 7 | |
10 | a [adj -er] period in | 6 |