I can swing you can swing he can swing we can swing you can swing they can swing
Forma con V-ing
I can be swinging you can be swinging he can be swinging we can be swinging you can be swinging they can be swinging
Perfecto
I can have swung you can have swung he can have swung we can have swung you can have swung they can have swung
Perfecto con V-ing
I can have been swinging you can have been swinging he can have been swinging we can have been swinging you can have been swinging they can have been swinging
Negación
Forma simple
I can't swing you can't swing he can't swing we can't swing you can't swing they can't swing
Forma con V-ing
I can't be swinging you can't be swinging he can't be swinging we can't be swinging you can't be swinging they can't be swinging
Perfecto
I can't have swung you can't have swung he can't have swung we can't have swung you can't have swung they can't have swung
Perfecto con V-ing
I can't have been swinging you can't have been swinging he can't have been swinging we can't have been swinging you can't have been swinging they can't have been swinging
Forma interrogativa
Forma simple
can I swing? can you swing? can he swing? can we swing? can you swing? can they swing?
Forma con V-ing
can I be swinging? can you be swinging? can he be swinging? can we be swinging? can you be swinging? can they be swinging?
Perfecto
can I have swung? can you have swung? can he have swung? can we have swung? can you have swung? can they have swung?
Perfecto con V-ing
can I have been swinging? can you have been swinging? can he have been swinging? can we have been swinging? can you have been swinging? can they have been swinging?
Forma interro-negativa
Forma simple
can't I swing? can't you swing? can't he swing? can't we swing? can't you swing? can't they swing?
Forma con V-ing
can't I be swinging? can't you be swinging? can't he be swinging? can't we be swinging? can't you be swinging? can't they be swinging?
Perfecto
can't I have swung? can't you have swung? can't he have swung? can't we have swung? can't you have swung? can't they have swung?
Perfecto con V-ing
can't I have been swinging? can't you have been swinging? can't he have been swinging? can't we have been swinging? can't you have been swinging? can't they have been swinging?