| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have [be] base on | 5 |
|
| 2 | may [verb] be base on | 5 |
|
| 3 | may [vb infin] [be] base on | 5 |
|
| 4 | may have [be] base on | 5 |
|
| 5 | may [verb] [be] based on | 5 |
|
| 6 | may [verb] [been] base on | 5 |
|
| 7 | may [verb] been base on | 5 |
|
