| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be payable when [art] | 12 |
|
| 2 | [be] payable when [art] | 12 |
|
| 3 | [be] payable when a | 6 |
|
| 4 | [be] payable when the | 6 |
|
| 5 | [am/are] payable when [art] | 6 |
|
| 6 | are payable when [art] | 6 |
|
