| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] are grounds for | 30 |
|
| 2 | [pron] are ground for | 30 |
|
| 3 | [ex0] are ground for | 28 |
|
| 4 | there are ground for | 28 |
|
| 5 | there are ground for | 28 |
|
