| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [art] period [prep] | 233 |
|
| 2 | [noun sg] [art] period [prep] | 27 |
|
| 3 | [noun sg] be [art] period | 24 |
|
| 4 | [noun sg] be [art] [prep] | 16 |
|
