| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he [vb -s] [verb] a | 1562 |
|
| 2 | when he [verb] a | 445 |
|
| 3 | when he [vb -s] [verb] | 299 |
|
| 4 | when he [vb -s] a | 68 |
|
