| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] based on a [noun] [prep] | 54 |
|
| 2 | [was/were] base on a [noun sg] [prep] | 51 |
|
| 3 | was base on a [noun] [prep] | 47 |
|
| 4 | [was/were] base on a [noun] of | 36 |
|
| 5 | were base on a [noun] [prep] | 7 |
|
| 6 | [was/were] base on a [noun] in | 5 |
|
