can languish
Regular verb: languish - languished- languished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can languish
you can languish
she can languish
we can languish
you can languish
they can languish 	I can be languishing
you can be languishing
she can be languishing
we can be languishing
you can be languishing
they can be languishing	I can have languished
you can have languished
she can have languished
we can have languished
you can have languished
they can have languished	I can have been languishing
you can have been languishing
she can have been languishing
we can have been languishing
you can have been languishing
they can have been languishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot languish
you cannot languish
she cannot languish
we cannot languish
you cannot languish
they cannot languish 	I cannot be languishing
you cannot be languishing
she cannot be languishing
we cannot be languishing
you cannot be languishing
they cannot be languishing	I cannot have languished
you cannot have languished
she cannot have languished
we cannot have languished
you cannot have languished
they cannot have languished	I cannot have been languishing
you cannot have been languishing
she cannot have been languishing
we cannot have been languishing
you cannot have been languishing
they cannot have been languishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I languish?
can you languish?
can she languish?
can we languish?
can you languish?
can they languish? 	can I be languishing?
can you be languishing?
can she be languishing?
can we be languishing?
can you be languishing?
can they be languishing? 	can I have languished?
can you have languished?
can she have languished?
can we have languished?
can you have languished?
can they have languished? 	can I have been languishing?
can you have been languishing?
can she have been languishing?
can we have been languishing?
can you have been languishing?
can they have been languishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not languish?
can you not languish?
can she not languish?
can we not languish?
can you not languish?
can they not languish? 	can I not be languishing?
can you not be languishing?
can she not be languishing?
can we not be languishing?
can you not be languishing?
can they not be languishing? 	can I not have languished?
can you not have languished?
can she not have languished?
can we not have languished?
can you not have languished?
can they not have languished? 	can I not have been languishing?
can you not have been languishing?
can she not have been languishing?
can we not have been languishing?
can you not have been languishing?
can they not have been languishing?