| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adj] time [conj] | 649 |
|
| 2 | [adv prt] at [adj] time | 170 |
|
| 3 | [adv prt] at [adj] [conj] | 107 |
|
| 4 | [adv prt] [adj] time [conj] | 55 |
|
