| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | take on extra [noun] | 19 |
|
| 2 | [verb] on extra [n mass] | 7 |
|
| 3 | [verb] on extra staff | 7 |
|
| 4 | [verb] on extra staff | 7 |
|
| 5 | [verb] on extra [noun sg] | 6 |
|
| 6 | [verb] on extra [noun pl] | 6 |
|
| 7 | [vb past] on extra [noun] | 5 |
|
| 8 | took on extra [noun] | 5 |
|
