| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for a [adj] period [prep] | 25 |
|
| 2 | [adv] for a [adj] period [prep] | 25 |
|
| 3 | [adv] for a [adj] period of | 20 |
|
| 4 | [adv] for a [adj] period of | 20 |
|
| 5 | [adv] for a short period [prep] | 7 |
|
| 6 | [adv] for a short period [prep] | 7 |
|
| 7 | only for a [adj] period [prep] | 6 |
|
| 8 | [adv] for a continuous period [prep] | 5 |
|
| 9 | [adv] for a continuous period [prep] | 5 |
|
| 10 | apart for a [adj] period [prep] | 5 |
|
