English verb conjugation
CAN EVOLVE

Regular verb: evolve - evolved - evolved

Affirmation

Simple form	V-ing form
I can evolve you can evolve he can evolve we can evolve you can evolve they can evolve	I can be evolving you can be evolving he can be evolving we can be evolving you can be evolving they can be evolving
Perfect	V-ing perfect
I can have evolved you can have evolved he can have evolved we can have evolved you can have evolved they can have evolved	I can have been evolving you can have been evolving he can have been evolving we can have been evolving you can have been evolving they can have been evolving

Negation

Simple form	V-ing form
I can't evolve you can't evolve he can't evolve we can't evolve you can't evolve they can't evolve	I can't be evolving you can't be evolving he can't be evolving we can't be evolving you can't be evolving they can't be evolving
Perfect	V-ing perfect
I can't have evolved you can't have evolved he can't have evolved we can't have evolved you can't have evolved they can't have evolved	I can't have been evolving you can't have been evolving he can't have been evolving we can't have been evolving you can't have been evolving they can't have been evolving

Interrogative form

Simple form	V-ing form
can I evolve? can you evolve? can he evolve? can we evolve? can you evolve? can they evolve?	can I be evolving? can you be evolving? can he be evolving? can we be evolving? can you be evolving? can they be evolving?
Perfect	V-ing perfect
can I have evolved? can you have evolved? can he have evolved? can we have evolved? can you have evolved? can they have evolved?	can I have been evolving? can you have been evolving? can he have been evolving? can we have been evolving? can you have been evolving? can they have been evolving?

Interro-negative form

Simple form	V-ing form
can't I evolve? can't you evolve? can't he evolve? can't we evolve? can't you evolve? can't they evolve?	can't I be evolving? can't you be evolving? can't he be evolving? can't we be evolving? can't you be evolving? can't they be evolving?
Perfect	V-ing perfect
can't I have evolved? can't you have evolved? can't he have evolved? can't we have evolved? can't you have evolved? can't they have evolved?	can't I have been evolving? can't you have been evolving? can't he have been evolving? can't we have been evolving? can't you have been evolving? can't they have been evolving?