Conjugação do verbo inglês
COULD PREPLAN

Verbo regular: preplan - preplaned - preplaned

Afirmação

Forma simple	Forma com V-ing
I could preplan you could preplan he could preplan we could preplan you could preplan they could preplan	I could be preplaning you could be preplaning he could be preplaning we could be preplaning you could be preplaning they could be preplaning
Perfeito	Perfeito com V-ing
I could have preplaned you could have preplaned he could have preplaned we could have preplaned you could have preplaned they could have preplaned	I could have been preplaning you could have been preplaning he could have been preplaning we could have been preplaning you could have been preplaning they could have been preplaning

Negação

Forma simple	Forma com V-ing
I couldn't preplan you couldn't preplan he couldn't preplan we couldn't preplan you couldn't preplan they couldn't preplan	I couldn't be preplaning you couldn't be preplaning he couldn't be preplaning we couldn't be preplaning you couldn't be preplaning they couldn't be preplaning
Perfeito	Perfeito com V-ing
I couldn't have preplaned you couldn't have preplaned he couldn't have preplaned we couldn't have preplaned you couldn't have preplaned they couldn't have preplaned	I couldn't have been preplaning you couldn't have been preplaning he couldn't have been preplaning we couldn't have been preplaning you couldn't have been preplaning they couldn't have been preplaning

Forma interrogativa

Forma simple	Forma com V-ing
could I preplan? could you preplan? could he preplan? could we preplan? could you preplan? could they preplan?	could I be preplaning? could you be preplaning? could he be preplaning? could we be preplaning? could you be preplaning? could they be preplaning?
Perfeito	Perfeito com V-ing
could I have preplaned? could you have preplaned? could he have preplaned? could we have preplaned? could you have preplaned? could they have preplaned?	could I have been preplaning? could you have been preplaning? could he have been preplaning? could we have been preplaning? could you have been preplaning? could they have been preplaning?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I preplan? couldn't you preplan? couldn't he preplan? couldn't we preplan? couldn't you preplan? couldn't they preplan?	couldn't I be preplaning? couldn't you be preplaning? couldn't he be preplaning? couldn't we be preplaning? couldn't you be preplaning? couldn't they be preplaning?
Perfeito	Perfeito com V-ing
couldn't I have preplaned? couldn't you have preplaned? couldn't he have preplaned? couldn't we have preplaned? couldn't you have preplaned? couldn't they have preplaned?	couldn't I have been preplaning? couldn't you have been preplaning? couldn't he have been preplaning? couldn't we have been preplaning? couldn't you have been preplaning? couldn't they have been preplaning?