can diminish
Regular verb: diminish - diminished- diminished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can diminish
you can diminish
she can diminish
we can diminish
you can diminish
they can diminish 	I can be diminishing
you can be diminishing
she can be diminishing
we can be diminishing
you can be diminishing
they can be diminishing	I can have diminished
you can have diminished
she can have diminished
we can have diminished
you can have diminished
they can have diminished	I can have been diminishing
you can have been diminishing
she can have been diminishing
we can have been diminishing
you can have been diminishing
they can have been diminishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot diminish
you cannot diminish
she cannot diminish
we cannot diminish
you cannot diminish
they cannot diminish 	I cannot be diminishing
you cannot be diminishing
she cannot be diminishing
we cannot be diminishing
you cannot be diminishing
they cannot be diminishing	I cannot have diminished
you cannot have diminished
she cannot have diminished
we cannot have diminished
you cannot have diminished
they cannot have diminished	I cannot have been diminishing
you cannot have been diminishing
she cannot have been diminishing
we cannot have been diminishing
you cannot have been diminishing
they cannot have been diminishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I diminish?
can you diminish?
can she diminish?
can we diminish?
can you diminish?
can they diminish? 	can I be diminishing?
can you be diminishing?
can she be diminishing?
can we be diminishing?
can you be diminishing?
can they be diminishing? 	can I have diminished?
can you have diminished?
can she have diminished?
can we have diminished?
can you have diminished?
can they have diminished? 	can I have been diminishing?
can you have been diminishing?
can she have been diminishing?
can we have been diminishing?
can you have been diminishing?
can they have been diminishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not diminish?
can you not diminish?
can she not diminish?
can we not diminish?
can you not diminish?
can they not diminish? 	can I not be diminishing?
can you not be diminishing?
can she not be diminishing?
can we not be diminishing?
can you not be diminishing?
can they not be diminishing? 	can I not have diminished?
can you not have diminished?
can she not have diminished?
can we not have diminished?
can you not have diminished?
can they not have diminished? 	can I not have been diminishing?
can you not have been diminishing?
can she not have been diminishing?
can we not have been diminishing?
can you not have been diminishing?
can they not have been diminishing?