| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] [prep] [noun] | 3540 |
|
| 2 | [am/are] [v-ing] [prep] [noun sg] | 1709 |
|
| 3 | [am/are] [verb] [prep] time | 68 |
|
| 4 | [be] [v-ing] [prep] time | 52 |
|
| 5 | [am/are] [v-ing] [prep] time | 14 |
|
