| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been affected by | 37 |
|
| 2 | has been affected by | 32 |
|
| 3 | had been affected by | 13 |
|
| 4 | have been affected by | 9 |
|
| 5 | to have been affected by | 8 |
|
