can conceive
Regular verb: conceive - conceived- conceived

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can conceive
you can conceive
he can conceive
we can conceive
you can conceive
they can conceive 	I can be conceiving
you can be conceiving
he can be conceiving
we can be conceiving
you can be conceiving
they can be conceiving	I can have conceived
you can have conceived
he can have conceived
we can have conceived
you can have conceived
they can have conceived	I can have been conceiving
you can have been conceiving
he can have been conceiving
we can have been conceiving
you can have been conceiving
they can have been conceiving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot conceive
you cannot conceive
he cannot conceive
we cannot conceive
you cannot conceive
they cannot conceive 	I cannot be conceiving
you cannot be conceiving
he cannot be conceiving
we cannot be conceiving
you cannot be conceiving
they cannot be conceiving	I cannot have conceived
you cannot have conceived
he cannot have conceived
we cannot have conceived
you cannot have conceived
they cannot have conceived	I cannot have been conceiving
you cannot have been conceiving
he cannot have been conceiving
we cannot have been conceiving
you cannot have been conceiving
they cannot have been conceiving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I conceive?
can you conceive?
can he conceive?
can we conceive?
can you conceive?
can they conceive? 	can I be conceiving?
can you be conceiving?
can he be conceiving?
can we be conceiving?
can you be conceiving?
can they be conceiving? 	can I have conceived?
can you have conceived?
can he have conceived?
can we have conceived?
can you have conceived?
can they have conceived? 	can I have been conceiving?
can you have been conceiving?
can he have been conceiving?
can we have been conceiving?
can you have been conceiving?
can they have been conceiving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not conceive?
can you not conceive?
can he not conceive?
can we not conceive?
can you not conceive?
can they not conceive? 	can I not be conceiving?
can you not be conceiving?
can he not be conceiving?
can we not be conceiving?
can you not be conceiving?
can they not be conceiving? 	can I not have conceived?
can you not have conceived?
can he not have conceived?
can we not have conceived?
can you not have conceived?
can they not have conceived? 	can I not have been conceiving?
can you not have been conceiving?
can he not have been conceiving?
can we not have been conceiving?
can you not have been conceiving?
can they not have been conceiving?