| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] [prep] the basis | 15 |
|
| 2 | could be [verb] [prep] the basis | 15 |
|
| 3 | could be [vb pp] [prep] the basis | 15 |
|
| 4 | could be [verb] on the basis | 11 |
|
| 5 | could be [verb] on the basis | 11 |
|
