| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is a question of | 171 |
|
| 2 | 's a question of | 135 |
|
| 3 | was a question of | 74 |
|
| 4 | be a question of | 45 |
|
| 5 | been a question of | 14 |
|
