| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has to be [prep] | 153 |
|
| 2 | has to be in | 49 |
|
| 3 | has to be at | 23 |
|
| 4 | has to be on | 23 |
|
| 5 | has to be of | 8 |
|
| 6 | has to be for | 7 |
|
| 7 | has to be by | 5 |
|
| 8 | has to be with | 5 |
|
