| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] be a [adj] [prep] | 86 |
|
| 2 | be a [adj] period [prep] | 75 |
|
| 3 | [ex0] be a period [prep] | 44 |
|
| 4 | [ex0] be a [adj] period | 27 |
|
