| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [adv] [adj] time | 66 |
|
| 2 | at [art] [adv] convenient [noun sg] | 9 |
|
| 3 | at [art] [adv] convenient [noun] | 9 |
|
| 4 | [prep] [art] [adv] convenient time | 9 |
|
| 5 | at [art] [adv] convenient time | 8 |
|
