| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] for [art] long period | 5 |
|
| 2 | [be] [vb pp] for [art] long period | 5 |
|
| 3 | [be] [verb] for [art] long period | 5 |
|
| 4 | be [verb] for [art] long period | 5 |
|
