| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be in existence at [art] time | 6 |
|
| 2 | [be] in existence at [art] time | 6 |
|
| 3 | in existence at [art] time [prep] | 5 |
|
| 4 | in existence at [art] time [prep] | 5 |
|
| 5 | in existence at [art] time of | 5 |
|
| 6 | in existence at [art] time of | 5 |
|
