| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [to-vb] back [prep] hospital | 7 |
|
| 2 | have [to-vb] back [prep] hospital | 7 |
|
| 3 | have to go back [prep] hospital | 6 |
|
| 4 | have [to-vb] back into hospital | 5 |
|
| 5 | have [to-vb] back into hospital | 5 |
|
