| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time be | 193 |
|
| 2 | at [art] time [be] | 192 |
|
| 3 | at [art] time [was/were] | 155 |
|
| 4 | at the time [be] | 150 |
|
| 5 | at [art] time was | 121 |
|
| 6 | at [art] time were | 34 |
|
| 7 | at [art] time is | 25 |
|
| 8 | at [art] time [is] | 25 |
|
| 9 | at no time [be] | 22 |
|
| 10 | at a time [be] | 21 |
|
| 11 | at [art] time [am/are] | 8 |
|
| 12 | at [art] time are | 8 |
|
