| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [vb pp] at the time | 30 |
|
| 2 | had [verb] at the time | 26 |
|
| 3 | [vb past] [to-vb] at the time | 9 |
|
| 4 | [vb past] think at the time | 7 |
|
| 5 | [vb past] thought at the time | 5 |
|
| 6 | 'd [verb] at the time | 5 |
|
| 7 | [vb past] [v-ing] at the time | 5 |
|
