| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [noun prp] [verb] a [noun] | 36 |
|
| 2 | when [noun prp] [verb] a [noun sg] | 33 |
|
| 3 | when [noun prp] [vb past] a [noun] | 32 |
|
| 4 | when [noun prp] have a [noun] | 7 |
|
| 5 | when [noun prp] had a [noun] | 6 |
|
