
Regular verb: interest - interested - interested
Simple form | V-ing form | 
| I can interest you can interest he can interest we can interest you can interest they can interest  | I can be interesting you can be interesting he can be interesting we can be interesting you can be interesting they can be interesting  | 
Perfect | V-ing perfect | 
| I can have interested you can have interested he can have interested we can have interested you can have interested they can have interested  | I can have been interesting you can have been interesting he can have been interesting we can have been interesting you can have been interesting they can have been interesting  | 
Simple form | V-ing form | 
| I can't interest you can't interest he can't interest we can't interest you can't interest they can't interest  | I can't be interesting you can't be interesting he can't be interesting we can't be interesting you can't be interesting they can't be interesting  | 
Perfect | V-ing perfect | 
| I can't have interested you can't have interested he can't have interested we can't have interested you can't have interested they can't have interested  | I can't have been interesting you can't have been interesting he can't have been interesting we can't have been interesting you can't have been interesting they can't have been interesting  | 
Simple form | V-ing form | 
| can I interest? can you interest? can he interest? can we interest? can you interest? can they interest?  | can I be interesting? can you be interesting? can he be interesting? can we be interesting? can you be interesting? can they be interesting?  | 
Perfect | V-ing perfect | 
| can I have interested? can you have interested? can he have interested? can we have interested? can you have interested? can they have interested?  | can I have been interesting? can you have been interesting? can he have been interesting? can we have been interesting? can you have been interesting? can they have been interesting?  | 
Simple form | V-ing form | 
| can't I interest? can't you interest? can't he interest? can't we interest? can't you interest? can't they interest?  | can't I be interesting? can't you be interesting? can't he be interesting? can't we be interesting? can't you be interesting? can't they be interesting?  | 
Perfect | V-ing perfect | 
| can't I have interested? can't you have interested? can't he have interested? can't we have interested? can't you have interested? can't they have interested?  | can't I have been interesting? can't you have been interesting? can't he have been interesting? can't we have been interesting? can't you have been interesting? can't they have been interesting?  |