Conjugação do verbo inglês
CAN SIEVE

Verbo regular: sieve - sieved - sieved

Afirmação

Forma simple	Forma com V-ing
I can sieve you can sieve he can sieve we can sieve you can sieve they can sieve	I can be sieving you can be sieving he can be sieving we can be sieving you can be sieving they can be sieving
Perfeito	Perfeito com V-ing
I can have sieved you can have sieved he can have sieved we can have sieved you can have sieved they can have sieved	I can have been sieving you can have been sieving he can have been sieving we can have been sieving you can have been sieving they can have been sieving

Negação

Forma simple	Forma com V-ing
I can't sieve you can't sieve he can't sieve we can't sieve you can't sieve they can't sieve	I can't be sieving you can't be sieving he can't be sieving we can't be sieving you can't be sieving they can't be sieving
Perfeito	Perfeito com V-ing
I can't have sieved you can't have sieved he can't have sieved we can't have sieved you can't have sieved they can't have sieved	I can't have been sieving you can't have been sieving he can't have been sieving we can't have been sieving you can't have been sieving they can't have been sieving

Forma interrogativa

Forma simple	Forma com V-ing
can I sieve? can you sieve? can he sieve? can we sieve? can you sieve? can they sieve?	can I be sieving? can you be sieving? can he be sieving? can we be sieving? can you be sieving? can they be sieving?
Perfeito	Perfeito com V-ing
can I have sieved? can you have sieved? can he have sieved? can we have sieved? can you have sieved? can they have sieved?	can I have been sieving? can you have been sieving? can he have been sieving? can we have been sieving? can you have been sieving? can they have been sieving?

Forma interro-Negação

Forma simple	Forma com V-ing
can't I sieve? can't you sieve? can't he sieve? can't we sieve? can't you sieve? can't they sieve?	can't I be sieving? can't you be sieving? can't he be sieving? can't we be sieving? can't you be sieving? can't they be sieving?
Perfeito	Perfeito com V-ing
can't I have sieved? can't you have sieved? can't he have sieved? can't we have sieved? can't you have sieved? can't they have sieved?	can't I have been sieving? can't you have been sieving? can't he have been sieving? can't we have been sieving? can't you have been sieving? can't they have been sieving?