Conjugación del verbo inglés
COULD ACHIEVE

Verbo regular: achieve - achieved - achieved

Afirmación

Forma simple	Forma con V-ing
I could achieve you could achieve he could achieve we could achieve you could achieve they could achieve	I could be achieving you could be achieving he could be achieving we could be achieving you could be achieving they could be achieving
Perfecto	Perfecto con V-ing
I could have achieved you could have achieved he could have achieved we could have achieved you could have achieved they could have achieved	I could have been achieving you could have been achieving he could have been achieving we could have been achieving you could have been achieving they could have been achieving

Negación

Forma simple	Forma con V-ing
I could not achieve you could not achieve he could not achieve we could not achieve you could not achieve they could not achieve	I could not be achieving you could not be achieving he could not be achieving we could not be achieving you could not be achieving they could not be achieving
Perfecto	Perfecto con V-ing
I could not have achieved you could not have achieved he could not have achieved we could not have achieved you could not have achieved they could not have achieved	I could not have been achieving you could not have been achieving he could not have been achieving we could not have been achieving you could not have been achieving they could not have been achieving

Forma interrogativa

Forma simple	Forma con V-ing
could I achieve? could you achieve? could he achieve? could we achieve? could you achieve? could they achieve?	could I be achieving? could you be achieving? could he be achieving? could we be achieving? could you be achieving? could they be achieving?
Perfecto	Perfecto con V-ing
could I have achieved? could you have achieved? could he have achieved? could we have achieved? could you have achieved? could they have achieved?	could I have been achieving? could you have been achieving? could he have been achieving? could we have been achieving? could you have been achieving? could they have been achieving?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not achieve? could you not achieve? could he not achieve? could we not achieve? could you not achieve? could they not achieve?	could I not be achieving? could you not be achieving? could he not be achieving? could we not be achieving? could you not be achieving? could they not be achieving?
Perfecto	Perfecto con V-ing
could I not have achieved? could you not have achieved? could he not have achieved? could we not have achieved? could you not have achieved? could they not have achieved?	could I not have been achieving? could you not have been achieving? could he not have been achieving? could we not have been achieving? could you not have been achieving? could they not have been achieving?