
Regular verb: thank - thanked - thanked
Simple form | V-ing form | 
| I'd thank you'd thank he'd thank we'd thank you'd thank they'd thank  | I'd be thanking you'd be thanking he'd be thanking we'd be thanking you'd be thanking they'd be thanking  | 
Perfect | V-ing perfect | 
| I should've thanked you should've thanked he should've thanked we should've thanked you should've thanked they should've thanked  | I should've been thanking you should've been thanking he should've been thanking we should've been thanking you should've been thanking they should've been thanking  | 
Simple form | V-ing form | 
| I shouldn't thank you shouldn't thank he shouldn't thank we shouldn't thank you shouldn't thank they shouldn't thank  | I shouldn't be thanking you shouldn't be thanking he shouldn't be thanking we shouldn't be thanking you shouldn't be thanking they shouldn't be thanking  | 
Perfect | V-ing perfect | 
| I shouldn't have thanked you shouldn't have thanked he shouldn't have thanked we shouldn't have thanked you shouldn't have thanked they shouldn't have thanked  | I shouldn't have been thanking you shouldn't have been thanking he shouldn't have been thanking we shouldn't have been thanking you shouldn't have been thanking they shouldn't have been thanking  | 
Simple form | V-ing form | 
| should I thank? should you thank? should he thank? should we thank? should you thank? should they thank?  | should I be thanking? should you be thanking? should he be thanking? should we be thanking? should you be thanking? should they be thanking?  | 
Perfect | V-ing perfect | 
| should I have thanked? should you have thanked? should he have thanked? should we have thanked? should you have thanked? should they have thanked?  | should I have been thanking? should you have been thanking? should he have been thanking? should we have been thanking? should you have been thanking? should they have been thanking?  | 
Simple form | V-ing form | 
| shouldn't I thank? shouldn't you thank? shouldn't he thank? shouldn't we thank? shouldn't you thank? shouldn't they thank?  | shouldn't I be thanking? shouldn't you be thanking? shouldn't he be thanking? shouldn't we be thanking? shouldn't you be thanking? shouldn't they be thanking?  | 
Perfect | V-ing perfect | 
| shouldn't I have thanked? shouldn't you have thanked? shouldn't he have thanked? shouldn't we have thanked? shouldn't you have thanked? shouldn't they have thanked?  | shouldn't I have been thanking? shouldn't you have been thanking? shouldn't he have been thanking? shouldn't we have been thanking? shouldn't you have been thanking? shouldn't they have been thanking?  |