| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is under [noun] | 484 |
|
| 2 | be under attack | 76 |
|
| 3 | [be] under attack | 76 |
|
| 4 | is [prep] attack | 23 |
|
| 5 | [is] under attack | 23 |
|
