English verb conjugation
CAN CONSERVE

Regular verb: conserve - conserved - conserved

Affirmation

Simple form	V-ing form
I can conserve you can conserve he can conserve we can conserve you can conserve they can conserve	I can be conserving you can be conserving he can be conserving we can be conserving you can be conserving they can be conserving
Perfect	V-ing perfect
I can have conserved you can have conserved he can have conserved we can have conserved you can have conserved they can have conserved	I can have been conserving you can have been conserving he can have been conserving we can have been conserving you can have been conserving they can have been conserving

Negation

Simple form	V-ing form
I cannot conserve you cannot conserve he cannot conserve we cannot conserve you cannot conserve they cannot conserve	I cannot be conserving you cannot be conserving he cannot be conserving we cannot be conserving you cannot be conserving they cannot be conserving
Perfect	V-ing perfect
I cannot have conserved you cannot have conserved he cannot have conserved we cannot have conserved you cannot have conserved they cannot have conserved	I cannot have been conserving you cannot have been conserving he cannot have been conserving we cannot have been conserving you cannot have been conserving they cannot have been conserving

Interrogative form

Simple form	V-ing form
can I conserve? can you conserve? can he conserve? can we conserve? can you conserve? can they conserve?	can I be conserving? can you be conserving? can he be conserving? can we be conserving? can you be conserving? can they be conserving?
Perfect	V-ing perfect
can I have conserved? can you have conserved? can he have conserved? can we have conserved? can you have conserved? can they have conserved?	can I have been conserving? can you have been conserving? can he have been conserving? can we have been conserving? can you have been conserving? can they have been conserving?

Interro-negative form

Simple form	V-ing form
can I not conserve? can you not conserve? can he not conserve? can we not conserve? can you not conserve? can they not conserve?	can I not be conserving? can you not be conserving? can he not be conserving? can we not be conserving? can you not be conserving? can they not be conserving?
Perfect	V-ing perfect
can I not have conserved? can you not have conserved? can he not have conserved? can we not have conserved? can you not have conserved? can they not have conserved?	can I not have been conserving? can you not have been conserving? can he not have been conserving? can we not have been conserving? can you not have been conserving? can they not have been conserving?