I can spring you can spring he can spring we can spring you can spring they can spring
V-ing form
I can be springing you can be springing he can be springing we can be springing you can be springing they can be springing
Perfect
I can have sprung you can have sprung he can have sprung we can have sprung you can have sprung they can have sprung
V-ing perfect
I can have been springing you can have been springing he can have been springing we can have been springing you can have been springing they can have been springing
Negation
Simple form
I can't spring you can't spring he can't spring we can't spring you can't spring they can't spring
V-ing form
I can't be springing you can't be springing he can't be springing we can't be springing you can't be springing they can't be springing
Perfect
I can't have sprung you can't have sprung he can't have sprung we can't have sprung you can't have sprung they can't have sprung
V-ing perfect
I can't have been springing you can't have been springing he can't have been springing we can't have been springing you can't have been springing they can't have been springing
Interrogative form
Simple form
can I spring? can you spring? can he spring? can we spring? can you spring? can they spring?
V-ing form
can I be springing? can you be springing? can he be springing? can we be springing? can you be springing? can they be springing?
Perfect
can I have sprung? can you have sprung? can he have sprung? can we have sprung? can you have sprung? can they have sprung?
V-ing perfect
can I have been springing? can you have been springing? can he have been springing? can we have been springing? can you have been springing? can they have been springing?
Interro-negative form
Simple form
can't I spring? can't you spring? can't he spring? can't we spring? can't you spring? can't they spring?
V-ing form
can't I be springing? can't you be springing? can't he be springing? can't we be springing? can't you be springing? can't they be springing?
Perfect
can't I have sprung? can't you have sprung? can't he have sprung? can't we have sprung? can't you have sprung? can't they have sprung?
V-ing perfect
can't I have been springing? can't you have been springing? can't he have been springing? can't we have been springing? can't you have been springing? can't they have been springing?