| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [adj] period | 144 |
|
| 2 | a [adj] [adj] period | 138 |
|
| 3 | a [adj] [adj] period | 124 |
|
| 4 | a [adj] transitional period | 17 |
|
| 5 | a [adj] transitional period | 17 |
|
| 6 | a [num] [adj] period | 16 |
|
| 7 | an [adj] [adj] period | 15 |
|
| 8 | a [adj] minute period | 14 |
|
| 9 | a [adj] minute period | 14 |
|
| 10 | a long [adj] period | 13 |
|
| 11 | a [adj] historical period | 11 |
|
| 12 | a [adj] historical period | 11 |
|
| 13 | a [adj -er] [adj] period | 10 |
|
| 14 | a long [adj] period | 9 |
|
| 15 | a [adj] cooling-off period | 8 |
|
| 16 | a [adj] cooling-off period | 8 |
|
| 17 | a [adj] five-year period | 6 |
|
| 18 | a [adj] five-year period | 6 |
|
| 19 | a short [adj] period | 5 |
|
| 20 | a 10 [adj] period | 5 |
|
| 21 | a far [adj] period | 5 |
|
| 22 | a further [adj] period | 5 |
|
| 23 | a 10 [adj] period | 5 |
|
