
Regelmäßiges Verb: lack - lacked - lacked
Einfache Form | Form mit V-ing | 
| I could lack you could lack he could lack we could lack you could lack they could lack  | I could be lacking you could be lacking he could be lacking we could be lacking you could be lacking they could be lacking  | 
Perfekt | Perfekt mit V-ing | 
| I could have lacked you could have lacked he could have lacked we could have lacked you could have lacked they could have lacked  | I could have been lacking you could have been lacking he could have been lacking we could have been lacking you could have been lacking they could have been lacking  | 
Einfache Form | Form mit V-ing | 
| I couldn't lack you couldn't lack he couldn't lack we couldn't lack you couldn't lack they couldn't lack  | I couldn't be lacking you couldn't be lacking he couldn't be lacking we couldn't be lacking you couldn't be lacking they couldn't be lacking  | 
Perfekt | Perfekt mit V-ing | 
| I couldn't have lacked you couldn't have lacked he couldn't have lacked we couldn't have lacked you couldn't have lacked they couldn't have lacked  | I couldn't have been lacking you couldn't have been lacking he couldn't have been lacking we couldn't have been lacking you couldn't have been lacking they couldn't have been lacking  | 
Einfache Form | Form mit V-ing | 
| could I lack? could you lack? could he lack? could we lack? could you lack? could they lack?  | could I be lacking? could you be lacking? could he be lacking? could we be lacking? could you be lacking? could they be lacking?  | 
Perfekt | Perfekt mit V-ing | 
| could I have lacked? could you have lacked? could he have lacked? could we have lacked? could you have lacked? could they have lacked?  | could I have been lacking? could you have been lacking? could he have been lacking? could we have been lacking? could you have been lacking? could they have been lacking?  | 
Einfache Form | Form mit V-ing | 
| couldn't I lack? couldn't you lack? couldn't he lack? couldn't we lack? couldn't you lack? couldn't they lack?  | couldn't I be lacking? couldn't you be lacking? couldn't he be lacking? couldn't we be lacking? couldn't you be lacking? couldn't they be lacking?  | 
Perfekt | Perfekt mit V-ing | 
| couldn't I have lacked? couldn't you have lacked? couldn't he have lacked? couldn't we have lacked? couldn't you have lacked? couldn't they have lacked?  | couldn't I have been lacking? couldn't you have been lacking? couldn't he have been lacking? couldn't we have been lacking? couldn't you have been lacking? couldn't they have been lacking?  |