| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] on [adj] | 1536 |
|
| 2 | be [v-ing] on [adj] | 95 |
|
| 3 | be concentrating on [adj] | 21 |
|
| 4 | [be] concentrating on [adj] | 21 |
|
| 5 | be concentrate on [adj] | 17 |
|
| 6 | [be] concentrating on [adj] | 5 |
|
| 7 | be concentrating [prep] [adj] | 5 |
|
