| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] ground for | 370 |
|
| 2 | the ground for | 258 |
|
| 3 | [art] ground for | 219 |
|
| 4 | [art] grounds for | 151 |
|
| 5 | no ground for | 74 |
|
| 6 | a ground for | 38 |
|
