| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have to use | 159 |
|
| 2 | have to use | 125 |
|
| 3 | had to use | 115 |
|
| 4 | having to use | 45 |
|
| 5 | has to use | 26 |
|
| 6 | had to use | 24 |
|
| 7 | to have to use | 5 |
|
