| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | based on [noun] | 2787 |
|
| 2 | [verb] on observation | 35 |
|
| 3 | [vb pp] on observation | 31 |
|
| 4 | based [prep] observation | 28 |
|
| 5 | based [prep] observation | 28 |
|
| 6 | base on observation | 25 |
|
| 7 | based on observation | 25 |
|
