I can achieve you can achieve he can achieve we can achieve you can achieve they can achieve
Forma con V-ing
I can be achieving you can be achieving he can be achieving we can be achieving you can be achieving they can be achieving
Perfecto
I can have achieved you can have achieved he can have achieved we can have achieved you can have achieved they can have achieved
Perfecto con V-ing
I can have been achieving you can have been achieving he can have been achieving we can have been achieving you can have been achieving they can have been achieving
Negación
Forma simple
I cannot achieve you cannot achieve he cannot achieve we cannot achieve you cannot achieve they cannot achieve
Forma con V-ing
I cannot be achieving you cannot be achieving he cannot be achieving we cannot be achieving you cannot be achieving they cannot be achieving
Perfecto
I cannot have achieved you cannot have achieved he cannot have achieved we cannot have achieved you cannot have achieved they cannot have achieved
Perfecto con V-ing
I cannot have been achieving you cannot have been achieving he cannot have been achieving we cannot have been achieving you cannot have been achieving they cannot have been achieving
Forma interrogativa
Forma simple
can I achieve? can you achieve? can he achieve? can we achieve? can you achieve? can they achieve?
Forma con V-ing
can I be achieving? can you be achieving? can he be achieving? can we be achieving? can you be achieving? can they be achieving?
Perfecto
can I have achieved? can you have achieved? can he have achieved? can we have achieved? can you have achieved? can they have achieved?
Perfecto con V-ing
can I have been achieving? can you have been achieving? can he have been achieving? can we have been achieving? can you have been achieving? can they have been achieving?
Forma interro-negativa
Forma simple
can I not achieve? can you not achieve? can he not achieve? can we not achieve? can you not achieve? can they not achieve?
Forma con V-ing
can I not be achieving? can you not be achieving? can he not be achieving? can we not be achieving? can you not be achieving? can they not be achieving?
Perfecto
can I not have achieved? can you not have achieved? can he not have achieved? can we not have achieved? can you not have achieved? can they not have achieved?
Perfecto con V-ing
can I not have been achieving? can you not have been achieving? can he not have been achieving? can we not have been achieving? can you not have been achieving? can they not have been achieving?