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