English verb conjugation
CAN MEASURE

Regular verb: measure - measured - measured

Affirmation

Simple form	V-ing form
I can measure you can measure he can measure we can measure you can measure they can measure	I can be measuring you can be measuring he can be measuring we can be measuring you can be measuring they can be measuring
Perfect	V-ing perfect
I can have measured you can have measured he can have measured we can have measured you can have measured they can have measured	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

Negation

Simple form	V-ing form
I can't measure you can't measure he can't measure we can't measure you can't measure they can't measure	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
Perfect	V-ing perfect
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	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

Interrogative form

Simple form	V-ing form
can I measure? can you measure? can he measure? can we measure? can you measure? can they measure?	can I be measuring? can you be measuring? can he be measuring? can we be measuring? can you be measuring? can they be measuring?
Perfect	V-ing perfect
can I have measured? can you have measured? can he have measured? can we have measured? can you have measured? can they have measured?	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?

Interro-negative form

Simple form	V-ing form
can't I measure? can't you measure? can't he measure? can't we measure? can't you measure? can't they measure?	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?
Perfect	V-ing perfect
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?	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?