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