| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [be] strong ground for | 8 |
|
| 2 | [pron] [be] strong ground for | 8 |
|
| 3 | there [be] strong ground for | 8 |
|
| 4 | there [be] strong ground for | 8 |
|
| 5 | [be] strong ground for [verb] | 8 |
|
| 6 | [be] strong ground for [v-ing] | 8 |
|
