| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] back to the [noun sg] | 73 |
|
| 2 | [be] [verb] back to the [noun sg] | 73 |
|
| 3 | [be] [verb] back to the [noun sg] | 73 |
|
| 4 | [be] [vb pp] back to the [noun sg] | 56 |
|
| 5 | [be] [v-ing] back to the [noun sg] | 15 |
|
| 6 | [be] traced back to the [noun sg] | 12 |
|
| 7 | [be] trace back to the [noun sg] | 12 |
|
| 8 | [be] go back to the [noun sg] | 5 |
|
