| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] an [noun sg] | 8261 |
|
| 2 | when [art] [noun sg] | 4437 |
|
| 3 | when [art] [noun sg] | 4437 |
|
| 4 | when a [noun sg] | 858 |
|
| 5 | [Wh adv] an [noun sg] | 428 |
|
| 6 | when an [noun] | 101 |
|
| 7 | when an [noun sg] | 88 |
|
