| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had suffered a | 103 |
|
| 2 | has suffered a | 74 |
|
| 3 | have suffered a | 34 |
|
| 4 | to have suffered a | 18 |
|
| 5 | have suffered a | 13 |
|
| 6 | having suffered a | 7 |
|
