| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] at a [noun sg] | 138 |
|
| 2 | is [verb] at a [noun sg] | 133 |
|
| 3 | [is] [vb pp] at a [noun sg] | 82 |
|
| 4 | [is] [v-ing] at a [noun sg] | 47 |
|
| 5 | [is] [verb] at a rate | 21 |
|
| 6 | [is] [verb] at a time | 17 |
|
| 7 | [is] look at a [noun sg] | 11 |
|
| 8 | [is] looking at a [noun sg] | 9 |
|
| 9 | [is] [to-vb] at a [noun sg] | 6 |
|
| 10 | [is] growing at a [noun sg] | 6 |
|
| 11 | [is] grow at a [noun sg] | 6 |
|
| 12 | [is] [verb] at a point | 5 |
|
| 13 | [is] [verb] at a speed | 5 |
|
| 14 | [is] increasing at a [noun sg] | 5 |
|
| 15 | [is] [verb] at a level | 5 |
|
| 16 | [is] increase at a [noun sg] | 5 |
|
| 17 | [is] sit at a [noun sg] | 5 |
|
| 18 | 's [verb] at a [noun sg] | 5 |
|
