| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had gone to [art] trouble of | 5 |
|
| 2 | had gone to [art] trouble [prep] | 5 |
|
| 3 | had gone to [art] trouble of | 5 |
|
| 4 | had gone to [art] trouble [prep] | 5 |
|
