Conjugación del verbo inglés
SHOULD GRADE

Verbo regular: grade - graded - graded

Afirmación

Forma simple	Forma con V-ing
I should grade you should grade he should grade we should grade you should grade they should grade	I should be grading you should be grading he should be grading we should be grading you should be grading they should be grading
Perfecto	Perfecto con V-ing
I should have graded you should have graded he should have graded we should have graded you should have graded they should have graded	I should have been grading you should have been grading he should have been grading we should have been grading you should have been grading they should have been grading

Negación

Forma simple	Forma con V-ing
I should not grade you should not grade he should not grade we should not grade you should not grade they should not grade	I should not be grading you should not be grading he should not be grading we should not be grading you should not be grading they should not be grading
Perfecto	Perfecto con V-ing
I should not have graded you should not have graded he should not have graded we should not have graded you should not have graded they should not have graded	I should not have been grading you should not have been grading he should not have been grading we should not have been grading you should not have been grading they should not have been grading

Forma interrogativa

Forma simple	Forma con V-ing
should I grade? should you grade? should he grade? should we grade? should you grade? should they grade?	should I be grading? should you be grading? should he be grading? should we be grading? should you be grading? should they be grading?
Perfecto	Perfecto con V-ing
should I have graded? should you have graded? should he have graded? should we have graded? should you have graded? should they have graded?	should I have been grading? should you have been grading? should he have been grading? should we have been grading? should you have been grading? should they have been grading?

Forma interro-negativa

Forma simple	Forma con V-ing
should I not grade? should you not grade? should he not grade? should we not grade? should you not grade? should they not grade?	should I not be grading? should you not be grading? should he not be grading? should we not be grading? should you not be grading? should they not be grading?
Perfecto	Perfecto con V-ing
should I not have graded? should you not have graded? should he not have graded? should we not have graded? should you not have graded? should they not have graded?	should I not have been grading? should you not have been grading? should he not have been grading? should we not have been grading? should you not have been grading? should they not have been grading?