Coniugazione del verbo inglese
CAN PREASCERTAIN

Verbo regolare: preascertain - preascertained - preascertained

Affermazione

Forma semplice	Forma con V-ing
I can preascertain you can preascertain he can preascertain we can preascertain you can preascertain they can preascertain	I can be preascertaining you can be preascertaining he can be preascertaining we can be preascertaining you can be preascertaining they can be preascertaining
Perfetto	Perfetto con V-ing
I can have preascertained you can have preascertained he can have preascertained we can have preascertained you can have preascertained they can have preascertained	I can have been preascertaining you can have been preascertaining he can have been preascertaining we can have been preascertaining you can have been preascertaining they can have been preascertaining

Negazione

Forma semplice	Forma con V-ing
I can't preascertain you can't preascertain he can't preascertain we can't preascertain you can't preascertain they can't preascertain	I can't be preascertaining you can't be preascertaining he can't be preascertaining we can't be preascertaining you can't be preascertaining they can't be preascertaining
Perfetto	Perfetto con V-ing
I can't have preascertained you can't have preascertained he can't have preascertained we can't have preascertained you can't have preascertained they can't have preascertained	I can't have been preascertaining you can't have been preascertaining he can't have been preascertaining we can't have been preascertaining you can't have been preascertaining they can't have been preascertaining

Forma interrogativa

Forma semplice	Forma con V-ing
can I preascertain? can you preascertain? can he preascertain? can we preascertain? can you preascertain? can they preascertain?	can I be preascertaining? can you be preascertaining? can he be preascertaining? can we be preascertaining? can you be preascertaining? can they be preascertaining?
Perfetto	Perfetto con V-ing
can I have preascertained? can you have preascertained? can he have preascertained? can we have preascertained? can you have preascertained? can they have preascertained?	can I have been preascertaining? can you have been preascertaining? can he have been preascertaining? can we have been preascertaining? can you have been preascertaining? can they have been preascertaining?

Forma interro-negativa

Forma semplice	Forma con V-ing
can't I preascertain? can't you preascertain? can't he preascertain? can't we preascertain? can't you preascertain? can't they preascertain?	can't I be preascertaining? can't you be preascertaining? can't he be preascertaining? can't we be preascertaining? can't you be preascertaining? can't they be preascertaining?
Perfetto	Perfetto con V-ing
can't I have preascertained? can't you have preascertained? can't he have preascertained? can't we have preascertained? can't you have preascertained? can't they have preascertained?	can't I have been preascertaining? can't you have been preascertaining? can't he have been preascertaining? can't we have been preascertaining? can't you have been preascertaining? can't they have been preascertaining?