| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i 've been [verb] on | 37 |
|
| 2 | i [vb base] been concentrate on | 7 |
|
| 3 | i [verb] been concentrate on | 7 |
|
| 4 | [pron] 've been concentrate on | 7 |
|
| 5 | [pers pn] 've been concentrate on | 7 |
|
| 6 | i have been concentrate on | 7 |
|
| 7 | i 've been concentrate [prep] | 6 |
|
| 8 | i 've [be] concentrate on | 6 |
|
| 9 | i 've been concentrate on | 6 |
|
| 10 | i 've been concentrate on | 6 |
|
| 11 | i 've [been] concentrate on | 6 |
|
| 12 | i 've be concentrate on | 6 |
|
| 13 | i 've been concentrate [prep] | 6 |
|
