| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [prep] [adj] [modal v] [vb infin] | 184 |
|
| 2 | [prep] [adj] period [modal v] [vb infin] | 21 |
|
| 3 | [noun pl] [prep] [adj] period [modal v] | 13 |
|
