| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [prep] a | 10073 |
|
| 2 | is [vb pp] [prep] a | 8810 |
|
| 3 | is [verb] by a | 2270 |
|
| 4 | is [verb] by a | 2270 |
|
| 5 | is [verb] as a | 1782 |
|
| 6 | is [verb] as a | 1782 |
|
| 7 | is [verb] in a | 1348 |
|
| 8 | is [verb] in a | 1348 |
|
| 9 | is [v-ing] [prep] a | 1001 |
|
| 10 | is [verb] on a | 848 |
|
| 11 | is [verb] on a | 848 |
|
| 12 | is [verb] with a | 813 |
|
| 13 | is [verb] with a | 813 |
|
| 14 | is [verb] to a | 725 |
|
| 15 | is [verb] to a | 725 |
|
| 16 | is [verb] for a | 543 |
|
| 17 | is [verb] for a | 543 |
|
| 18 | is base [prep] a | 351 |
|
| 19 | is based [prep] a | 351 |
|
| 20 | is [verb] at a | 315 |
|
| 21 | is [verb] at a | 315 |
|
| 22 | is [verb] from a | 311 |
|
| 23 | is [verb] from a | 311 |
|
| 24 | is [verb] into a | 291 |
|
| 25 | is [verb] into a | 291 |
|
| 26 | is see [prep] a | 270 |
|
| 27 | is seen [prep] a | 270 |
|
| 28 | is [to-vb] [prep] a | 242 |
|
| 29 | is use [prep] a | 230 |
|
| 30 | is used [prep] a | 228 |
|
