| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [verb] back [prep] the | 79 |
|
| 2 | [verb] [be] [vb pp] back [prep] the | 64 |
|
| 3 | [verb] [be] traced back [prep] [art] | 5 |
|
| 4 | [verb] [be] traced back [prep] the | 5 |
|
| 5 | [verb] [be] traced back [prep] the | 5 |
|
| 6 | [verb] [be] traced [adv] [prep] the | 5 |
|
| 7 | [verb] [be] traced [adv prt] [prep] the | 5 |
|
| 8 | [verb] [be] trace back [prep] the | 5 |
|
