English verb conjugation
CAN BIRTH

Regular verb: birth - birthed - birthed

Affirmation

Simple form	V-ing form
I can birth you can birth he can birth we can birth you can birth they can birth	I can be birthing you can be birthing he can be birthing we can be birthing you can be birthing they can be birthing
Perfect	V-ing perfect
I can have birthed you can have birthed he can have birthed we can have birthed you can have birthed they can have birthed	I can have been birthing you can have been birthing he can have been birthing we can have been birthing you can have been birthing they can have been birthing

Negation

Simple form	V-ing form
I can't birth you can't birth he can't birth we can't birth you can't birth they can't birth	I can't be birthing you can't be birthing he can't be birthing we can't be birthing you can't be birthing they can't be birthing
Perfect	V-ing perfect
I can't have birthed you can't have birthed he can't have birthed we can't have birthed you can't have birthed they can't have birthed	I can't have been birthing you can't have been birthing he can't have been birthing we can't have been birthing you can't have been birthing they can't have been birthing

Interrogative form

Simple form	V-ing form
can I birth? can you birth? can he birth? can we birth? can you birth? can they birth?	can I be birthing? can you be birthing? can he be birthing? can we be birthing? can you be birthing? can they be birthing?
Perfect	V-ing perfect
can I have birthed? can you have birthed? can he have birthed? can we have birthed? can you have birthed? can they have birthed?	can I have been birthing? can you have been birthing? can he have been birthing? can we have been birthing? can you have been birthing? can they have been birthing?

Interro-negative form

Simple form	V-ing form
can't I birth? can't you birth? can't he birth? can't we birth? can't you birth? can't they birth?	can't I be birthing? can't you be birthing? can't he be birthing? can't we be birthing? can't you be birthing? can't they be birthing?
Perfect	V-ing perfect
can't I have birthed? can't you have birthed? can't he have birthed? can't we have birthed? can't you have birthed? can't they have birthed?	can't I have been birthing? can't you have been birthing? can't he have been birthing? can't we have been birthing? can't you have been birthing? can't they have been birthing?