| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [vb mod] [vb infin] | 24 |
|
| 2 | is [v-ing] [modal v] [vb infin] | 21 |
|
| 3 | [is] [v-ing] will [vb infin] | 8 |
|
| 4 | [is] [v-ing] will [vb infin] | 8 |
|
