Conjugación del verbo inglés
COULD SLIP

Verbo regular: slip - slipped - slipped

Afirmación

Forma simple	Forma con V-ing
I could slip you could slip he could slip we could slip you could slip they could slip	I could be slipping you could be slipping he could be slipping we could be slipping you could be slipping they could be slipping
Perfecto	Perfecto con V-ing
I could have slipped you could have slipped he could have slipped we could have slipped you could have slipped they could have slipped	I could have been slipping you could have been slipping he could have been slipping we could have been slipping you could have been slipping they could have been slipping

Negación

Forma simple	Forma con V-ing
I couldn't slip you couldn't slip he couldn't slip we couldn't slip you couldn't slip they couldn't slip	I couldn't be slipping you couldn't be slipping he couldn't be slipping we couldn't be slipping you couldn't be slipping they couldn't be slipping
Perfecto	Perfecto con V-ing
I couldn't have slipped you couldn't have slipped he couldn't have slipped we couldn't have slipped you couldn't have slipped they couldn't have slipped	I couldn't have been slipping you couldn't have been slipping he couldn't have been slipping we couldn't have been slipping you couldn't have been slipping they couldn't have been slipping

Forma interrogativa

Forma simple	Forma con V-ing
could I slip? could you slip? could he slip? could we slip? could you slip? could they slip?	could I be slipping? could you be slipping? could he be slipping? could we be slipping? could you be slipping? could they be slipping?
Perfecto	Perfecto con V-ing
could I have slipped? could you have slipped? could he have slipped? could we have slipped? could you have slipped? could they have slipped?	could I have been slipping? could you have been slipping? could he have been slipping? could we have been slipping? could you have been slipping? could they have been slipping?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I slip? couldn't you slip? couldn't he slip? couldn't we slip? couldn't you slip? couldn't they slip?	couldn't I be slipping? couldn't you be slipping? couldn't he be slipping? couldn't we be slipping? couldn't you be slipping? couldn't they be slipping?
Perfecto	Perfecto con V-ing
couldn't I have slipped? couldn't you have slipped? couldn't he have slipped? couldn't we have slipped? couldn't you have slipped? couldn't they have slipped?	couldn't I have been slipping? couldn't you have been slipping? couldn't he have been slipping? couldn't we have been slipping? couldn't you have been slipping? couldn't they have been slipping?