| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [verb] | 176074 |
|
| 2 | had [vb pp] | 158240 |
|
| 3 | [verb] worked | 2834 |
|
| 4 | have worked | 2779 |
|
| 5 | had work | 1115 |
|
| 6 | [vb past] worked | 986 |
|
