can abbreviate
Regular verb: abbreviate - abbreviated- abbreviated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can abbreviate
you can abbreviate
she can abbreviate
we can abbreviate
you can abbreviate
they can abbreviate 	I can be abbreviating
you can be abbreviating
she can be abbreviating
we can be abbreviating
you can be abbreviating
they can be abbreviating	I can have abbreviated
you can have abbreviated
she can have abbreviated
we can have abbreviated
you can have abbreviated
they can have abbreviated	I can have been abbreviating
you can have been abbreviating
she can have been abbreviating
we can have been abbreviating
you can have been abbreviating
they can have been abbreviating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't abbreviate
you can't abbreviate
she can't abbreviate
we can't abbreviate
you can't abbreviate
they can't abbreviate 	I can't be abbreviating
you can't be abbreviating
she can't be abbreviating
we can't be abbreviating
you can't be abbreviating
they can't be abbreviating	I can't have abbreviated
you can't have abbreviated
she can't have abbreviated
we can't have abbreviated
you can't have abbreviated
they can't have abbreviated	I can't have been abbreviating
you can't have been abbreviating
she can't have been abbreviating
we can't have been abbreviating
you can't have been abbreviating
they can't have been abbreviating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I abbreviate?
can you abbreviate?
can she abbreviate?
can we abbreviate?
can you abbreviate?
can they abbreviate? 	can I be abbreviating?
can you be abbreviating?
can she be abbreviating?
can we be abbreviating?
can you be abbreviating?
can they be abbreviating? 	can I have abbreviated?
can you have abbreviated?
can she have abbreviated?
can we have abbreviated?
can you have abbreviated?
can they have abbreviated? 	can I have been abbreviating?
can you have been abbreviating?
can she have been abbreviating?
can we have been abbreviating?
can you have been abbreviating?
can they have been abbreviating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I abbreviate?
can't you abbreviate?
can't she abbreviate?
can't we abbreviate?
can't you abbreviate?
can't they abbreviate? 	can't I be abbreviating?
can't you be abbreviating?
can't she be abbreviating?
can't we be abbreviating?
can't you be abbreviating?
can't they be abbreviating? 	can't I have abbreviated?
can't you have abbreviated?
can't she have abbreviated?
can't we have abbreviated?
can't you have abbreviated?
can't they have abbreviated? 	can't I have been abbreviating?
can't you have been abbreviating?
can't she have been abbreviating?
can't we have been abbreviating?
can't you have been abbreviating?
can't they have been abbreviating?