| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] is [verb] to be | 1954 |
|
| 2 | [noun sg] [verb] to be [v-ing] | 663 |
|
| 3 | is [verb] to be [v-ing] | 261 |
|
| 4 | [noun sg] is [verb] to [v-ing] | 154 |
|
