Conjugação do verbo inglês
COULD TINKER

Verbo regular: tinker - tinkered - tinkered

Afirmação

Forma simple	Forma com V-ing
I could tinker you could tinker he could tinker we could tinker you could tinker they could tinker	I could be tinkering you could be tinkering he could be tinkering we could be tinkering you could be tinkering they could be tinkering
Perfeito	Perfeito com V-ing
I could have tinkered you could have tinkered he could have tinkered we could have tinkered you could have tinkered they could have tinkered	I could have been tinkering you could have been tinkering he could have been tinkering we could have been tinkering you could have been tinkering they could have been tinkering

Negação

Forma simple	Forma com V-ing
I could not tinker you could not tinker he could not tinker we could not tinker you could not tinker they could not tinker	I could not be tinkering you could not be tinkering he could not be tinkering we could not be tinkering you could not be tinkering they could not be tinkering
Perfeito	Perfeito com V-ing
I could not have tinkered you could not have tinkered he could not have tinkered we could not have tinkered you could not have tinkered they could not have tinkered	I could not have been tinkering you could not have been tinkering he could not have been tinkering we could not have been tinkering you could not have been tinkering they could not have been tinkering

Forma interrogativa

Forma simple	Forma com V-ing
could I tinker? could you tinker? could he tinker? could we tinker? could you tinker? could they tinker?	could I be tinkering? could you be tinkering? could he be tinkering? could we be tinkering? could you be tinkering? could they be tinkering?
Perfeito	Perfeito com V-ing
could I have tinkered? could you have tinkered? could he have tinkered? could we have tinkered? could you have tinkered? could they have tinkered?	could I have been tinkering? could you have been tinkering? could he have been tinkering? could we have been tinkering? could you have been tinkering? could they have been tinkering?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not tinker? could you not tinker? could he not tinker? could we not tinker? could you not tinker? could they not tinker?	could I not be tinkering? could you not be tinkering? could he not be tinkering? could we not be tinkering? could you not be tinkering? could they not be tinkering?
Perfeito	Perfeito com V-ing
could I not have tinkered? could you not have tinkered? could he not have tinkered? could we not have tinkered? could you not have tinkered? could they not have tinkered?	could I not have been tinkering? could you not have been tinkering? could he not have been tinkering? could we not have been tinkering? could you not have been tinkering? could they not have been tinkering?