| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] [verb] at a time | 47 |
|
| 2 | [noun] be [verb] at a time | 47 |
|
| 3 | [noun] [be] [vb pp] at a time | 40 |
|
| 4 | [noun] [was/were] [verb] at a time | 33 |
|
| 5 | [noun sg] [be] [verb] at a time | 26 |
|
| 6 | [noun] was [verb] at a time | 20 |
|
| 7 | [noun pl] [be] [verb] at a time | 15 |
|
| 8 | [noun] were [verb] at a time | 13 |
|
| 9 | [noun] is [verb] at a time | 11 |
|
| 10 | [noun] [is] [verb] at a time | 11 |
|
| 11 | [noun] [be] [v-ing] at a time | 7 |
|
