I back you back he backs we back you back they back
Presente continuo
I am backing you are backing he is backing we are backing you are backing they are backing
Pretérito
I backed you backed he backed we backed you backed they backed
Pretérito continuo
I was backing you were backing he was backing we were backing you were backing they were backing
Presente perfecto
I have backed you have backed he has backed we have backed you have backed they have backed
Presente perfecto continuo
I have been backing you have been backing he has been backing we have been backing you have been backing they have been backing
Pluscuamperfecto
I had backed you had backed he had backed we had backed you had backed they had backed
Pluscuamperfecto continuo
I had been backing you had been backing he had been backing we had been backing you had been backing they had been backing
Futuro simple
I will back you will back he will back we will back you will back they will back
Futuro continuo
I will be backing you will be backing he will be backing we will be backing you will be backing they will be backing
Futuro perfecto
I will have backed you will have backed he will have backed we will have backed you will have backed they will have backed
Futuro perfecto contínuo
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
Condicional
Presente
I would back you would back he would back we would back you would back they would back
Presente continuo
I would be backing you would be backing he would be backing we would be backing you would be backing they would be backing
Passado
I would have backed you would have backed he would have backed we would have backed you would have backed they would have backed
Passado continuo
I would have been backing you would have been backing he would have been backing we would have been backing you would have been backing they would have been backing