| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be grounds for [v-ing] | 23 |
|
| 2 | [be] grounds for [v-ing] | 23 |
|
| 3 | [am/are] grounds for [v-ing] | 15 |
|
| 4 | are grounds for [v-ing] | 15 |
|
