English verb conjugation
CAN LIGNIFY

Regular verb: lignify - lignified - lignified

Affirmation

Simple form	V-ing form
I can lignify you can lignify he can lignify we can lignify you can lignify they can lignify	I can be lignifying you can be lignifying he can be lignifying we can be lignifying you can be lignifying they can be lignifying
Perfect	V-ing perfect
I can have lignified you can have lignified he can have lignified we can have lignified you can have lignified they can have lignified	I can have been lignifying you can have been lignifying he can have been lignifying we can have been lignifying you can have been lignifying they can have been lignifying

Negation

Simple form	V-ing form
I can't lignify you can't lignify he can't lignify we can't lignify you can't lignify they can't lignify	I can't be lignifying you can't be lignifying he can't be lignifying we can't be lignifying you can't be lignifying they can't be lignifying
Perfect	V-ing perfect
I can't have lignified you can't have lignified he can't have lignified we can't have lignified you can't have lignified they can't have lignified	I can't have been lignifying you can't have been lignifying he can't have been lignifying we can't have been lignifying you can't have been lignifying they can't have been lignifying

Interrogative form

Simple form	V-ing form
can I lignify? can you lignify? can he lignify? can we lignify? can you lignify? can they lignify?	can I be lignifying? can you be lignifying? can he be lignifying? can we be lignifying? can you be lignifying? can they be lignifying?
Perfect	V-ing perfect
can I have lignified? can you have lignified? can he have lignified? can we have lignified? can you have lignified? can they have lignified?	can I have been lignifying? can you have been lignifying? can he have been lignifying? can we have been lignifying? can you have been lignifying? can they have been lignifying?

Interro-negative form

Simple form	V-ing form
can't I lignify? can't you lignify? can't he lignify? can't we lignify? can't you lignify? can't they lignify?	can't I be lignifying? can't you be lignifying? can't he be lignifying? can't we be lignifying? can't you be lignifying? can't they be lignifying?
Perfect	V-ing perfect
can't I have lignified? can't you have lignified? can't he have lignified? can't we have lignified? can't you have lignified? can't they have lignified?	can't I have been lignifying? can't you have been lignifying? can't he have been lignifying? can't we have been lignifying? can't you have been lignifying? can't they have been lignifying?