English verb conjugation
CAN REASON

Regular verb: reason - reasoned - reasoned

Affirmation

Simple form	V-ing form
I can reason you can reason he can reason we can reason you can reason they can reason	I can be reasoning you can be reasoning he can be reasoning we can be reasoning you can be reasoning they can be reasoning
Perfect	V-ing perfect
I can have reasoned you can have reasoned he can have reasoned we can have reasoned you can have reasoned they can have reasoned	I can have been reasoning you can have been reasoning he can have been reasoning we can have been reasoning you can have been reasoning they can have been reasoning

Negation

Simple form	V-ing form
I can't reason you can't reason he can't reason we can't reason you can't reason they can't reason	I can't be reasoning you can't be reasoning he can't be reasoning we can't be reasoning you can't be reasoning they can't be reasoning
Perfect	V-ing perfect
I can't have reasoned you can't have reasoned he can't have reasoned we can't have reasoned you can't have reasoned they can't have reasoned	I can't have been reasoning you can't have been reasoning he can't have been reasoning we can't have been reasoning you can't have been reasoning they can't have been reasoning

Interrogative form

Simple form	V-ing form
can I reason? can you reason? can he reason? can we reason? can you reason? can they reason?	can I be reasoning? can you be reasoning? can he be reasoning? can we be reasoning? can you be reasoning? can they be reasoning?
Perfect	V-ing perfect
can I have reasoned? can you have reasoned? can he have reasoned? can we have reasoned? can you have reasoned? can they have reasoned?	can I have been reasoning? can you have been reasoning? can he have been reasoning? can we have been reasoning? can you have been reasoning? can they have been reasoning?

Interro-negative form

Simple form	V-ing form
can't I reason? can't you reason? can't he reason? can't we reason? can't you reason? can't they reason?	can't I be reasoning? can't you be reasoning? can't he be reasoning? can't we be reasoning? can't you be reasoning? can't they be reasoning?
Perfect	V-ing perfect
can't I have reasoned? can't you have reasoned? can't he have reasoned? can't we have reasoned? can't you have reasoned? can't they have reasoned?	can't I have been reasoning? can't you have been reasoning? can't he have been reasoning? can't we have been reasoning? can't you have been reasoning? can't they have been reasoning?