I can measure you can measure he can measure we can measure you can measure they can measure
Forma con V-ing
I can be measuring you can be measuring he can be measuring we can be measuring you can be measuring they can be measuring
Perfecto
I can have measured you can have measured he can have measured we can have measured you can have measured they can have measured
Perfecto con V-ing
I can have been measuring you can have been measuring he can have been measuring we can have been measuring you can have been measuring they can have been measuring
Negación
Forma simple
I can't measure you can't measure he can't measure we can't measure you can't measure they can't measure
Forma con V-ing
I can't be measuring you can't be measuring he can't be measuring we can't be measuring you can't be measuring they can't be measuring
Perfecto
I can't have measured you can't have measured he can't have measured we can't have measured you can't have measured they can't have measured
Perfecto con V-ing
I can't have been measuring you can't have been measuring he can't have been measuring we can't have been measuring you can't have been measuring they can't have been measuring
Forma interrogativa
Forma simple
can I measure? can you measure? can he measure? can we measure? can you measure? can they measure?
Forma con V-ing
can I be measuring? can you be measuring? can he be measuring? can we be measuring? can you be measuring? can they be measuring?
Perfecto
can I have measured? can you have measured? can he have measured? can we have measured? can you have measured? can they have measured?
Perfecto con V-ing
can I have been measuring? can you have been measuring? can he have been measuring? can we have been measuring? can you have been measuring? can they have been measuring?
Forma interro-negativa
Forma simple
can't I measure? can't you measure? can't he measure? can't we measure? can't you measure? can't they measure?
Forma con V-ing
can't I be measuring? can't you be measuring? can't he be measuring? can't we be measuring? can't you be measuring? can't they be measuring?
Perfecto
can't I have measured? can't you have measured? can't he have measured? can't we have measured? can't you have measured? can't they have measured?
Perfecto con V-ing
can't I have been measuring? can't you have been measuring? can't he have been measuring? can't we have been measuring? can't you have been measuring? can't they have been measuring?