Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Indicativo
Presente
I upstairs you upstairs he upstairss we upstairs you upstairs they upstairs
Presente contínuo
I am upstairsing you are upstairsing he is upstairsing we are upstairsing you are upstairsing they are upstairsing
Pretérito
I upstairsed you upstairsed he upstairsed we upstairsed you upstairsed they upstairsed
Preterito contínuo
I was upstairsing you were upstairsing he was upstairsing we were upstairsing you were upstairsing they were upstairsing
Presente perfeito
I have upstairsed you have upstairsed he has upstairsed we have upstairsed you have upstairsed they have upstairsed
Presente perfeito contínuo
I have been upstairsing you have been upstairsing he has been upstairsing we have been upstairsing you have been upstairsing they have been upstairsing
Mais perfeito
I had upstairsed you had upstairsed he had upstairsed we had upstairsed you had upstairsed they had upstairsed
Contínuo mais perfeito
I had been upstairsing you had been upstairsing he had been upstairsing we had been upstairsing you had been upstairsing they had been upstairsing
Futuro
I will upstairs you will upstairs he will upstairs we will upstairs you will upstairs they will upstairs
Futuro contínuo
I will be upstairsing you will be upstairsing he will be upstairsing we will be upstairsing you will be upstairsing they will be upstairsing
futuro perfeito
I will have upstairsed you will have upstairsed he will have upstairsed we will have upstairsed you will have upstairsed they will have upstairsed
futuro perfeito contínuo
I will have been upstairsing you will have been upstairsing he will have been upstairsing we will have been upstairsing you will have been upstairsing they will have been upstairsing
Condicional
Presente
I would upstairs you would upstairs he would upstairs we would upstairs you would upstairs they would upstairs
Presente contínuo
I would be upstairsing you would be upstairsing he would be upstairsing we would be upstairsing you would be upstairsing they would be upstairsing
Passado
I would have upstairsed you would have upstairsed he would have upstairsed we would have upstairsed you would have upstairsed they would have upstairsed
Passado contínuo
I would have been upstairsing you would have been upstairsing he would have been upstairsing we would have been upstairsing you would have been upstairsing they would have been upstairsing