| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a long | 1144 |
|
| 2 | [vb pp] [prep] a long | 518 |
|
| 3 | existed [prep] a [adj] | 13 |
|
| 4 | existed [prep] [art] long | 6 |
|
| 5 | existed [prep] a long | 6 |
|
| 6 | exist [prep] a long | 6 |
|
| 7 | existed [prep] [art] long | 6 |
|
