Conjugação do verbo inglês CAN ASCERTAIN

Verbo regular: ascertain - ascertained - ascertained

Afirmação

Forma simple

I can ascertain
you can ascertain
he can ascertain
we can ascertain
you can ascertain
they can ascertain

Forma com V-ing

I can be ascertaining
you can be ascertaining
he can be ascertaining
we can be ascertaining
you can be ascertaining
they can be ascertaining

Perfeito

I can have ascertained
you can have ascertained
he can have ascertained
we can have ascertained
you can have ascertained
they can have ascertained

Perfeito com V-ing

I can have been ascertaining
you can have been ascertaining
he can have been ascertaining
we can have been ascertaining
you can have been ascertaining
they can have been ascertaining

Negação

Forma simple

I can't ascertain
you can't ascertain
he can't ascertain
we can't ascertain
you can't ascertain
they can't ascertain

Forma com V-ing

I can't be ascertaining
you can't be ascertaining
he can't be ascertaining
we can't be ascertaining
you can't be ascertaining
they can't be ascertaining

Perfeito

I can't have ascertained
you can't have ascertained
he can't have ascertained
we can't have ascertained
you can't have ascertained
they can't have ascertained

Perfeito com V-ing

I can't have been ascertaining
you can't have been ascertaining
he can't have been ascertaining
we can't have been ascertaining
you can't have been ascertaining
they can't have been ascertaining

Forma interrogativa

Forma simple

can I ascertain?
can you ascertain?
can he ascertain?
can we ascertain?
can you ascertain?
can they ascertain?

Forma com V-ing

can I be ascertaining?
can you be ascertaining?
can he be ascertaining?
can we be ascertaining?
can you be ascertaining?
can they be ascertaining?

Perfeito

can I have ascertained?
can you have ascertained?
can he have ascertained?
can we have ascertained?
can you have ascertained?
can they have ascertained?

Perfeito com V-ing

can I have been ascertaining?
can you have been ascertaining?
can he have been ascertaining?
can we have been ascertaining?
can you have been ascertaining?
can they have been ascertaining?

Forma interro-Negação

Forma simple

can't I ascertain?
can't you ascertain?
can't he ascertain?
can't we ascertain?
can't you ascertain?
can't they ascertain?

Forma com V-ing

can't I be ascertaining?
can't you be ascertaining?
can't he be ascertaining?
can't we be ascertaining?
can't you be ascertaining?
can't they be ascertaining?

Perfeito

can't I have ascertained?
can't you have ascertained?
can't he have ascertained?
can't we have ascertained?
can't you have ascertained?
can't they have ascertained?

Perfeito com V-ing

can't I have been ascertaining?
can't you have been ascertaining?
can't he have been ascertaining?
can't we have been ascertaining?
can't you have been ascertaining?
can't they have been ascertaining?

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