
Verbe régulier : concern -  concerned - concerned
Traduction française : inquiéter - concerner 
| Forme simple | Forme en V-ing | 
| I can concern you can concern he can concern we can concern you can concern they can concern | I can be concerning you can be concerning he can be concerning we can be concerning you can be concerning they can be concerning | 
| Perfect | Perfect en V-ing | 
| I can have concerned you can have concerned he can have concerned we can have concerned you can have concerned they can have concerned | I can have been concerning you can have been concerning he can have been concerning we can have been concerning you can have been concerning they can have been concerning | 
| Forme simple | Forme en V-ing | 
| I can't concern you can't concern he can't concern we can't concern you can't concern they can't concern | I can't be concerning you can't be concerning he can't be concerning we can't be concerning you can't be concerning they can't be concerning | 
| Perfect | Perfect en V-ing | 
| I can't have concerned you can't have concerned he can't have concerned we can't have concerned you can't have concerned they can't have concerned | I can't have been concerning you can't have been concerning he can't have been concerning we can't have been concerning you can't have been concerning they can't have been concerning | 
| Forme simple | Forme en V-ing | 
| can I concern? can you concern? can he concern? can we concern? can you concern? can they concern? | can I be concerning? can you be concerning? can he be concerning? can we be concerning? can you be concerning? can they be concerning? | 
| Perfect | Perfect en V-ing | 
| can I have concerned? can you have concerned? can he have concerned? can we have concerned? can you have concerned? can they have concerned? | can I have been concerning? can you have been concerning? can he have been concerning? can we have been concerning? can you have been concerning? can they have been concerning? | 
| Forme simple | Forme en V-ing | 
| can't I concern? can't you concern? can't he concern? can't we concern? can't you concern? can't they concern? | can't I be concerning? can't you be concerning? can't he be concerning? can't we be concerning? can't you be concerning? can't they be concerning? | 
| Perfect | Perfect en V-ing | 
| can't I have concerned? can't you have concerned? can't he have concerned? can't we have concerned? can't you have concerned? can't they have concerned? | can't I have been concerning? can't you have been concerning? can't he have been concerning? can't we have been concerning? can't you have been concerning? can't they have been concerning? |