can birth
Regular verb: birth - birthed- birthed

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