| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] long period [vb mod] | 10 |
|
| 2 | a long period [modal v] | 10 |
|
| 3 | [art] long period [modal v] | 5 |
|
| 4 | [art] longer period [modal v] | 5 |
|
