| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] be [v-ing] for [pos pn] | 10 |
|
| 2 | when [pers pn] [was/were] [v-ing] for [pos pn] | 6 |
|
| 3 | when [pers pn] was [v-ing] for [pos pn] | 5 |
|
