| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have to be put in | 17 |
|
| 2 | have to be put in | 17 |
|
| 3 | have to be put in | 16 |
|
| 4 | had to be put in | 6 |
|
| 5 | has to be put in | 5 |
|
