| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [prep] [be] [art] basis [prep] | 6 |
|
| 2 | [was/were] [prep] [be] [art] basis [prep] | 6 |
|
| 3 | [was/were] [prep] [be] [art] basis of | 5 |
|
| 4 | [was/were] [prep] [be] [art] basis of | 5 |
|
