Verbo Regular Concern
El verbo regular concern significa preocupar.
| Presente | |
| I | concern |
| you | concern |
| he | concerns |
| we | concern |
| you | concern |
| they | concern |
| Pasado | |
| I | concerned |
| you | concerned |
| he | concerned |
| we | concerned |
| you | concerned |
| they | concerned |
| Futuro | |
| I | will concern |
| you | will concern |
| he | will concern |
| we | will concern |
| you | will concern |
| they | will concern |
| Perfecto | |
| I | have concerned |
| you | have concerned |
| he | has concerned |
| we | have concerned |
| you | have concerned |
| they | have concerned |