
Auxiliar modal can - could
Presente | Presente continuo | Pretérito | Pretérito continuo | 
|  can I? can you? can she? can we? can you? can they?  | - |  could I? could you? could she? could we? could you? could they?  | - | 
Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
| - | - | - | - | 
Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
| - | - | - | - | 
Presente | Presente continuo | Passado | Passado continuo | 
| - | - | - | - | 
Infinitivo | Imperativo | 
Infinitivo | Imperativo | ||
| - | - | 
Presente | Passado | ||
| - | - |