| Simple | Progressive | Perfect | Progressive |
| Present |
| I concern |
| you concern |
| he/she/it concerns |
| we concern |
| you all concern |
| they concern |
|
| I am concerning |
| you are concerning |
| he/she/it is concerning |
| we are concerning |
| you all are concerning |
| they are concerning |
|
| I have concerned |
| you have concerned |
| he/she/it has concerned |
| we have concerned |
| you all have concerned |
| they have concerned |
|
| I have been concerning |
| you have been concerning |
| he/she/it has been concerning |
| we have been concerning |
| you all have been concerning |
| they have been concerning |
|
| Past |
| I concerned |
| you concerned |
| he/she/it concerned |
| we concerned |
| you all concerned |
| they concerned |
|
| I was concerning |
| you were concerning |
| he/she/it was concerning |
| we were concerning |
| you all were concerning |
| they were concerning |
|
| I had concerned |
| you had concerned |
| he/she/it had concerned |
| we had concerned |
| you all had concerned |
| they had concerned |
|
| I had been concerning |
| you had been concerning |
| he/she/it had been concerning |
| we had been concerning |
| you all had been concerning |
| they had been concerning |
|
| Future |
| I will concern |
| you will concern |
| he/she/it will concern |
| we will concern |
| you all will concern |
| they will concern |
|
| I will be concerning |
| you will be concerning |
| he/she/it will be concerning |
| we are concerning |
| you all will be concerning |
| they will be concerning |
|
| I will have concerned |
| you will have concerned |
| he/she/it will have concerned |
| we will have concerned |
| you all will have concerned |
| they will have concerned |
|
| I will have been concerning |
| you will have been concerning |
| he/she/it will have been concerning |
| we will have been concerning |
| you all will have been concerning |
| they will have been concerning |
|
