| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [verb] at the back [prep] | 35 |
|
| 2 | [noun sg] [verb] at the back [prep] | 35 |
|
| 3 | [noun sg] [verb] at the back of | 31 |
|
| 4 | [noun sg] [verb] at the back of | 31 |
|
| 5 | [noun sg] [vb pp] at the back [prep] | 13 |
|
| 6 | [noun sg] [vb past] at the back [prep] | 11 |
|
| 7 | [noun sg] [v-ing] at the back [prep] | 7 |
|
