| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at a time | 107 |
|
| 2 | [be] [vb pp] at a time | 94 |
|
| 3 | [was/were] [verb] at a time | 48 |
|
| 4 | was [verb] at a time | 32 |
|
| 5 | [be] [verb] at a time | 24 |
|
| 6 | be [verb] at a time | 24 |
|
| 7 | [is] [verb] at a time | 17 |
|
| 8 | is [verb] at a time | 17 |
|
| 9 | were [verb] at a time | 16 |
|
| 10 | [be] [v-ing] at a time | 13 |
|
| 11 | been [verb] at a time | 7 |
|
| 12 | [been] [verb] at a time | 7 |
|
| 13 | [be] write at a time | 6 |
|
| 14 | are [verb] at a time | 6 |
|
| 15 | [am/are] [verb] at a time | 6 |
|
| 16 | [be] bear at a time | 5 |
|
| 17 | [be] born at a time | 5 |
|
| 18 | [be] written at a time | 5 |
|
| 19 | being [verb] at a time | 5 |
|
| 20 | [being] [verb] at a time | 5 |
|
