Verbo regular: ascertain - ascertained - ascertained
Afirmação
Forma simple
I ought to ascertain you ought to ascertain he ought to ascertain we ought to ascertain you ought to ascertain they ought to ascertain
Forma com V-ing
I ought to be ascertaining you ought to be ascertaining he ought to be ascertaining we ought to be ascertaining you ought to be ascertaining they ought to be ascertaining
Perfeito
I ought to have ascertained you ought to have ascertained he ought to have ascertained we ought to have ascertained you ought to have ascertained they ought to have ascertained
Perfeito com V-ing
I ought to have been ascertaining you ought to have been ascertaining he ought to have been ascertaining we ought to have been ascertaining you ought to have been ascertaining they ought to have been ascertaining
Negação
Forma simple
I ought not to ascertain you ought not to ascertain he ought not to ascertain we ought not to ascertain you ought not to ascertain they ought not to ascertain
Forma com V-ing
I ought not to ascertaining you ought not to ascertaining he ought not to ascertaining we ought not to ascertaining you ought not to ascertaining they ought not to ascertaining
Perfeito
I ought not to have ascertained you ought not to have ascertained he ought not to have ascertained we ought not to have ascertained you ought not to have ascertained they ought not to have ascertained
Perfeito com V-ing
I ought not to have been ascertaining you ought not to have been ascertaining he ought not to have been ascertaining we ought not to have been ascertaining you ought not to have been ascertaining they ought not to have been ascertaining
Forma interrogativa
Forma simple
ought to I ascertain? ought to you ascertain? ought to he ascertain? ought to we ascertain? ought to you ascertain? ought to they ascertain?
Forma com V-ing
ought to I be ascertaining? ought to you be ascertaining? ought to he be ascertaining? ought to we be ascertaining? ought to you be ascertaining? ought to they be ascertaining?
Perfeito
ought to I have ascertained? ought to you have ascertained? ought to he have ascertained? ought to we have ascertained? ought to you have ascertained? ought to they have ascertained?
Perfeito com V-ing
ought to I have been ascertaining? ought to you have been ascertaining? ought to he have been ascertaining? ought to we have been ascertaining? ought to you have been ascertaining? ought to they have been ascertaining?
Forma interro-Negação
Forma simple
ought I not to ascertain? ought you not to ascertain? ought he not to ascertain? ought we not to ascertain? ought you not to ascertain? ought they not to ascertain?
Forma com V-ing
ought I not to be ascertaining? ought you not to be ascertaining? ought he not to be ascertaining? ought we not to be ascertaining? ought you not to be ascertaining? ought they not to be ascertaining?
Perfeito
ought I not to have ascertained? ought you not to have ascertained? ought he not to have ascertained? ought we not to have ascertained? ought you not to have ascertained? ought they not to have ascertained?
Perfeito com V-ing
ought I not to have been ascertaining? ought you not to have been ascertaining? ought he not to have been ascertaining? ought we not to have been ascertaining? ought you not to have been ascertaining? ought they not to have been ascertaining?