| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when i was [verb] at | 30 |
|
| 2 | when i was [v-ing] at | 25 |
|
| 3 | when i was work at | 7 |
|
| 4 | when i was working at | 7 |
|
| 5 | when i was looking at | 6 |
|
| 6 | when i was look at | 6 |
|
| 7 | when i was [vb pp] at | 5 |
|
