| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and at a [noun] | 122 |
|
| 2 | and at a [noun sg] | 120 |
|
| 3 | and at [art] time | 107 |
|
| 4 | and at [art] time | 107 |
|
| 5 | and [prep] a time | 104 |
|
| 6 | and [prep] a time | 104 |
|
| 7 | [conj] at a time | 73 |
|
| 8 | and at a time | 34 |
|
| 9 | and at a time | 34 |
|
| 10 | and at a time | 34 |
|
