| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when a [noun sg] [vb -s] | 701 |
|
| 2 | and a [noun sg] [vb -s] | 192 |
|
| 3 | and when a [noun sg] | 77 |
|
| 4 | and when [noun sg] [vb -s] | 30 |
|
