| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and then [vb past] back [prep] | 55 |
|
| 2 | and then [vb past] [prep] [noun sg] | 50 |
|
| 3 | and [vb past] back [prep] [noun sg] | 49 |
|
| 4 | then [vb past] back [prep] [noun sg] | 15 |
|
