English verb conjugation
CAN SAMPLE

Regular verb: sample - sampled - sampled

Affirmation

Simple form	V-ing form
I can sample you can sample he can sample we can sample you can sample they can sample	I can be sampling you can be sampling he can be sampling we can be sampling you can be sampling they can be sampling
Perfect	V-ing perfect
I can have sampled you can have sampled he can have sampled we can have sampled you can have sampled they can have sampled	I can have been sampling you can have been sampling he can have been sampling we can have been sampling you can have been sampling they can have been sampling

Negation

Simple form	V-ing form
I cannot sample you cannot sample he cannot sample we cannot sample you cannot sample they cannot sample	I cannot be sampling you cannot be sampling he cannot be sampling we cannot be sampling you cannot be sampling they cannot be sampling
Perfect	V-ing perfect
I cannot have sampled you cannot have sampled he cannot have sampled we cannot have sampled you cannot have sampled they cannot have sampled	I cannot have been sampling you cannot have been sampling he cannot have been sampling we cannot have been sampling you cannot have been sampling they cannot have been sampling

Interrogative form

Simple form	V-ing form
can I sample? can you sample? can he sample? can we sample? can you sample? can they sample?	can I be sampling? can you be sampling? can he be sampling? can we be sampling? can you be sampling? can they be sampling?
Perfect	V-ing perfect
can I have sampled? can you have sampled? can he have sampled? can we have sampled? can you have sampled? can they have sampled?	can I have been sampling? can you have been sampling? can he have been sampling? can we have been sampling? can you have been sampling? can they have been sampling?

Interro-negative form

Simple form	V-ing form
can I not sample? can you not sample? can he not sample? can we not sample? can you not sample? can they not sample?	can I not be sampling? can you not be sampling? can he not be sampling? can we not be sampling? can you not be sampling? can they not be sampling?
Perfect	V-ing perfect
can I not have sampled? can you not have sampled? can he not have sampled? can we not have sampled? can you not have sampled? can they not have sampled?	can I not have been sampling? can you not have been sampling? can he not have been sampling? can we not have been sampling? can you not have been sampling? can they not have been sampling?