| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] is | 24134 |
|
| 2 | [v-ing] is | 3267 |
|
| 3 | lack is | 30 |
|
| 4 | lacking be | 19 |
|
| 5 | lacking [be] | 19 |
|
| 6 | lacking [is] | 11 |
|
