| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] for use when | 9 |
|
| 2 | [noun sg] for use when | 6 |
|
| 3 | [verb] for use when | 5 |
|
| 4 | for use when [verb] | 8 |
|
| 5 | for use when [v-ing] | 7 |
|
| 6 | for use when [noun] | 5 |
|
