Conjugação do verbo inglês
COULD CHALK

Verbo regular: chalk - chalked - chalked

Afirmação

Forma simple	Forma com V-ing
I could chalk you could chalk he could chalk we could chalk you could chalk they could chalk	I could be chalking you could be chalking he could be chalking we could be chalking you could be chalking they could be chalking
Perfeito	Perfeito com V-ing
I could have chalked you could have chalked he could have chalked we could have chalked you could have chalked they could have chalked	I could have been chalking you could have been chalking he could have been chalking we could have been chalking you could have been chalking they could have been chalking

Negação

Forma simple	Forma com V-ing
I couldn't chalk you couldn't chalk he couldn't chalk we couldn't chalk you couldn't chalk they couldn't chalk	I couldn't be chalking you couldn't be chalking he couldn't be chalking we couldn't be chalking you couldn't be chalking they couldn't be chalking
Perfeito	Perfeito com V-ing
I couldn't have chalked you couldn't have chalked he couldn't have chalked we couldn't have chalked you couldn't have chalked they couldn't have chalked	I couldn't have been chalking you couldn't have been chalking he couldn't have been chalking we couldn't have been chalking you couldn't have been chalking they couldn't have been chalking

Forma interrogativa

Forma simple	Forma com V-ing
could I chalk? could you chalk? could he chalk? could we chalk? could you chalk? could they chalk?	could I be chalking? could you be chalking? could he be chalking? could we be chalking? could you be chalking? could they be chalking?
Perfeito	Perfeito com V-ing
could I have chalked? could you have chalked? could he have chalked? could we have chalked? could you have chalked? could they have chalked?	could I have been chalking? could you have been chalking? could he have been chalking? could we have been chalking? could you have been chalking? could they have been chalking?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I chalk? couldn't you chalk? couldn't he chalk? couldn't we chalk? couldn't you chalk? couldn't they chalk?	couldn't I be chalking? couldn't you be chalking? couldn't he be chalking? couldn't we be chalking? couldn't you be chalking? couldn't they be chalking?
Perfeito	Perfeito com V-ing
couldn't I have chalked? couldn't you have chalked? couldn't he have chalked? couldn't we have chalked? couldn't you have chalked? couldn't they have chalked?	couldn't I have been chalking? couldn't you have been chalking? couldn't he have been chalking? couldn't we have been chalking? couldn't you have been chalking? couldn't they have been chalking?