I can backflip you can backflip he can backflip we can backflip you can backflip they can backflip
Forma con V-ing
I can be backfliping you can be backfliping he can be backfliping we can be backfliping you can be backfliping they can be backfliping
Perfecto
I can have backfliped you can have backfliped he can have backfliped we can have backfliped you can have backfliped they can have backfliped
Perfecto con V-ing
I can have been backfliping you can have been backfliping he can have been backfliping we can have been backfliping you can have been backfliping they can have been backfliping
Negación
Forma simple
I can't backflip you can't backflip he can't backflip we can't backflip you can't backflip they can't backflip
Forma con V-ing
I can't be backfliping you can't be backfliping he can't be backfliping we can't be backfliping you can't be backfliping they can't be backfliping
Perfecto
I can't have backfliped you can't have backfliped he can't have backfliped we can't have backfliped you can't have backfliped they can't have backfliped
Perfecto con V-ing
I can't have been backfliping you can't have been backfliping he can't have been backfliping we can't have been backfliping you can't have been backfliping they can't have been backfliping
Forma interrogativa
Forma simple
can I backflip? can you backflip? can he backflip? can we backflip? can you backflip? can they backflip?
Forma con V-ing
can I be backfliping? can you be backfliping? can he be backfliping? can we be backfliping? can you be backfliping? can they be backfliping?
Perfecto
can I have backfliped? can you have backfliped? can he have backfliped? can we have backfliped? can you have backfliped? can they have backfliped?
Perfecto con V-ing
can I have been backfliping? can you have been backfliping? can he have been backfliping? can we have been backfliping? can you have been backfliping? can they have been backfliping?
Forma interro-negativa
Forma simple
can't I backflip? can't you backflip? can't he backflip? can't we backflip? can't you backflip? can't they backflip?
Forma con V-ing
can't I be backfliping? can't you be backfliping? can't he be backfliping? can't we be backfliping? can't you be backfliping? can't they be backfliping?
Perfecto
can't I have backfliped? can't you have backfliped? can't he have backfliped? can't we have backfliped? can't you have backfliped? can't they have backfliped?
Perfecto con V-ing
can't I have been backfliping? can't you have been backfliping? can't he have been backfliping? can't we have been backfliping? can't you have been backfliping? can't they have been backfliping?