I will back you will back he will back we will back you will back they will back
V-ing form
I will be backing you will be backing he will be backing we will be backing you will be backing they will be backing
Perfect
I will have backed you will have backed he will have backed we will have backed you will have backed they will have backed
V-ing perfect
I will have been backing you will have been backing he will have been backing we will have been backing you will have been backing they will have been backing
Negation
Simple form
I will not back you will not back he will not back we will not back you will not back they will not back
V-ing form
I will not be backing you will not be backing he will not be backing we will not be backing you will not be backing they will not be backing
Perfect
I will not have backed you will not have backed he will not have backed we will not have backed you will not have backed they will not have backed
V-ing perfect
I will not have been backing you will not have been backing he will not have been backing we will not have been backing you will not have been backing they will not have been backing
Interrogative form
Simple form
will I back? will you back? will he back? will we back? will you back? will they back?
V-ing form
will I be backing? will you be backing? will he be backing? will we be backing? will you be backing? will they be backing?
Perfect
will I have backed? will you have backed? will he have backed? will we have backed? will you have backed? will they have backed?
V-ing perfect
will I have been backing? will you have been backing? will he have been backing? will we have been backing? will you have been backing? will they have been backing?
Interro-negative form
Simple form
will I not back? will you not back? will he not back? will we not back? will you not back? will they not back?
V-ing form
will I not be backing? will you not be backing? will he not be backing? will we not be backing? will you not be backing? will they not be backing?
Perfect
will I not have backed? will you not have backed? will he not have backed? will we not have backed? will you not have backed? will they not have backed?
V-ing perfect
will I not have been backing? will you not have been backing? will he not have been backing? will we not have been backing? will you not have been backing? will they not have been backing?