Conjugación del verbo inglés
COULD PRECHECK

Verbo regular: precheck - prechecked - prechecked

Afirmación

Forma simple	Forma con V-ing
I could precheck you could precheck he could precheck we could precheck you could precheck they could precheck	I could be prechecking you could be prechecking he could be prechecking we could be prechecking you could be prechecking they could be prechecking
Perfecto	Perfecto con V-ing
I could have prechecked you could have prechecked he could have prechecked we could have prechecked you could have prechecked they could have prechecked	I could have been prechecking you could have been prechecking he could have been prechecking we could have been prechecking you could have been prechecking they could have been prechecking

Negación

Forma simple	Forma con V-ing
I could not precheck you could not precheck he could not precheck we could not precheck you could not precheck they could not precheck	I could not be prechecking you could not be prechecking he could not be prechecking we could not be prechecking you could not be prechecking they could not be prechecking
Perfecto	Perfecto con V-ing
I could not have prechecked you could not have prechecked he could not have prechecked we could not have prechecked you could not have prechecked they could not have prechecked	I could not have been prechecking you could not have been prechecking he could not have been prechecking we could not have been prechecking you could not have been prechecking they could not have been prechecking

Forma interrogativa

Forma simple	Forma con V-ing
could I precheck? could you precheck? could he precheck? could we precheck? could you precheck? could they precheck?	could I be prechecking? could you be prechecking? could he be prechecking? could we be prechecking? could you be prechecking? could they be prechecking?
Perfecto	Perfecto con V-ing
could I have prechecked? could you have prechecked? could he have prechecked? could we have prechecked? could you have prechecked? could they have prechecked?	could I have been prechecking? could you have been prechecking? could he have been prechecking? could we have been prechecking? could you have been prechecking? could they have been prechecking?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not precheck? could you not precheck? could he not precheck? could we not precheck? could you not precheck? could they not precheck?	could I not be prechecking? could you not be prechecking? could he not be prechecking? could we not be prechecking? could you not be prechecking? could they not be prechecking?
Perfecto	Perfecto con V-ing
could I not have prechecked? could you not have prechecked? could he not have prechecked? could we not have prechecked? could you not have prechecked? could they not have prechecked?	could I not have been prechecking? could you not have been prechecking? could he not have been prechecking? could we not have been prechecking? could you not have been prechecking? could they not have been prechecking?