
Regular verb: taste - tasted - tasted
Simple form | V-ing form | 
| I could taste you could taste she could taste we could taste you could taste they could taste  | I could be tasting you could be tasting she could be tasting we could be tasting you could be tasting they could be tasting  | 
Perfect | V-ing perfect | 
| I could have tasted you could have tasted she could have tasted we could have tasted you could have tasted they could have tasted  | I could have been tasting you could have been tasting she could have been tasting we could have been tasting you could have been tasting they could have been tasting  | 
Simple form | V-ing form | 
| I couldn't taste you couldn't taste she couldn't taste we couldn't taste you couldn't taste they couldn't taste  | I couldn't be tasting you couldn't be tasting she couldn't be tasting we couldn't be tasting you couldn't be tasting they couldn't be tasting  | 
Perfect | V-ing perfect | 
| I couldn't have tasted you couldn't have tasted she couldn't have tasted we couldn't have tasted you couldn't have tasted they couldn't have tasted  | I couldn't have been tasting you couldn't have been tasting she couldn't have been tasting we couldn't have been tasting you couldn't have been tasting they couldn't have been tasting  | 
Simple form | V-ing form | 
| could I taste? could you taste? could she taste? could we taste? could you taste? could they taste?  | could I be tasting? could you be tasting? could she be tasting? could we be tasting? could you be tasting? could they be tasting?  | 
Perfect | V-ing perfect | 
| could I have tasted? could you have tasted? could she have tasted? could we have tasted? could you have tasted? could they have tasted?  | could I have been tasting? could you have been tasting? could she have been tasting? could we have been tasting? could you have been tasting? could they have been tasting?  | 
Simple form | V-ing form | 
| couldn't I taste? couldn't you taste? couldn't she taste? couldn't we taste? couldn't you taste? couldn't they taste?  | couldn't I be tasting? couldn't you be tasting? couldn't she be tasting? couldn't we be tasting? couldn't you be tasting? couldn't they be tasting?  | 
Perfect | V-ing perfect | 
| couldn't I have tasted? couldn't you have tasted? couldn't she have tasted? couldn't we have tasted? couldn't you have tasted? couldn't they have tasted?  | couldn't I have been tasting? couldn't you have been tasting? couldn't she have been tasting? couldn't we have been tasting? couldn't you have been tasting? couldn't they have been tasting?  |