| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | notice must be [vb pp] [prep] | 19 |
|
| 2 | notice must be given [prep] | 11 |
|
| 3 | notice must be give [prep] | 11 |
|
| 4 | notice must be [verb] to | 6 |
|
