can secern
Regular verb: secern - secerned- secerned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can secern
you can secern
she can secern
we can secern
you can secern
they can secern 	I can be secerning
you can be secerning
she can be secerning
we can be secerning
you can be secerning
they can be secerning	I can have secerned
you can have secerned
she can have secerned
we can have secerned
you can have secerned
they can have secerned	I can have been secerning
you can have been secerning
she can have been secerning
we can have been secerning
you can have been secerning
they can have been secerning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't secern
you can't secern
she can't secern
we can't secern
you can't secern
they can't secern 	I can't be secerning
you can't be secerning
she can't be secerning
we can't be secerning
you can't be secerning
they can't be secerning	I can't have secerned
you can't have secerned
she can't have secerned
we can't have secerned
you can't have secerned
they can't have secerned	I can't have been secerning
you can't have been secerning
she can't have been secerning
we can't have been secerning
you can't have been secerning
they can't have been secerning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I secern?
can you secern?
can she secern?
can we secern?
can you secern?
can they secern? 	can I be secerning?
can you be secerning?
can she be secerning?
can we be secerning?
can you be secerning?
can they be secerning? 	can I have secerned?
can you have secerned?
can she have secerned?
can we have secerned?
can you have secerned?
can they have secerned? 	can I have been secerning?
can you have been secerning?
can she have been secerning?
can we have been secerning?
can you have been secerning?
can they have been secerning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I secern?
can't you secern?
can't she secern?
can't we secern?
can't you secern?
can't they secern? 	can't I be secerning?
can't you be secerning?
can't she be secerning?
can't we be secerning?
can't you be secerning?
can't they be secerning? 	can't I have secerned?
can't you have secerned?
can't she have secerned?
can't we have secerned?
can't you have secerned?
can't they have secerned? 	can't I have been secerning?
can't you have been secerning?
can't she have been secerning?
can't we have been secerning?
can't you have been secerning?
can't they have been secerning?