Verbo regular: ascertain - ascertained - ascertained
Afirmación
Forma simple
I ought to ascertain you ought to ascertain she ought to ascertain we ought to ascertain you ought to ascertain they ought to ascertain
Forma con V-ing
I ought to be ascertaining you ought to be ascertaining she ought to be ascertaining we ought to be ascertaining you ought to be ascertaining they ought to be ascertaining
Perfecto
I ought to have ascertained you ought to have ascertained she ought to have ascertained we ought to have ascertained you ought to have ascertained they ought to have ascertained
Perfecto con V-ing
I ought to have been ascertaining you ought to have been ascertaining she ought to have been ascertaining we ought to have been ascertaining you ought to have been ascertaining they ought to have been ascertaining
Negación
Forma simple
I ought not to ascertain you ought not to ascertain she ought not to ascertain we ought not to ascertain you ought not to ascertain they ought not to ascertain
Forma con V-ing
I ought not to ascertaining you ought not to ascertaining she ought not to ascertaining we ought not to ascertaining you ought not to ascertaining they ought not to ascertaining
Perfecto
I ought not to have ascertained you ought not to have ascertained she ought not to have ascertained we ought not to have ascertained you ought not to have ascertained they ought not to have ascertained
Perfecto con V-ing
I ought not to have been ascertaining you ought not to have been ascertaining she 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 she ascertain? ought to we ascertain? ought to you ascertain? ought to they ascertain?
Forma con V-ing
ought to I be ascertaining? ought to you be ascertaining? ought to she be ascertaining? ought to we be ascertaining? ought to you be ascertaining? ought to they be ascertaining?
Perfecto
ought to I have ascertained? ought to you have ascertained? ought to she have ascertained? ought to we have ascertained? ought to you have ascertained? ought to they have ascertained?
Perfecto con V-ing
ought to I have been ascertaining? ought to you have been ascertaining? ought to she have been ascertaining? ought to we have been ascertaining? ought to you have been ascertaining? ought to they have been ascertaining?
Forma interro-negativa
Forma simple
ought I not to ascertain? ought you not to ascertain? ought she not to ascertain? ought we not to ascertain? ought you not to ascertain? ought they not to ascertain?
Forma con V-ing
ought I not to be ascertaining? ought you not to be ascertaining? ought she not to be ascertaining? ought we not to be ascertaining? ought you not to be ascertaining? ought they not to be ascertaining?
Perfecto
ought I not to have ascertained? ought you not to have ascertained? ought she not to have ascertained? ought we not to have ascertained? ought you not to have ascertained? ought they not to have ascertained?
Perfecto con V-ing
ought I not to have been ascertaining? ought you not to have been ascertaining? ought she 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?