can rank
Regular verb: rank - ranked- ranked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can rank
you can rank
she can rank
we can rank
you can rank
they can rank 	I can be ranking
you can be ranking
she can be ranking
we can be ranking
you can be ranking
they can be ranking	I can have ranked
you can have ranked
she can have ranked
we can have ranked
you can have ranked
they can have ranked	I can have been ranking
you can have been ranking
she can have been ranking
we can have been ranking
you can have been ranking
they can have been ranking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't rank
you can't rank
she can't rank
we can't rank
you can't rank
they can't rank 	I can't be ranking
you can't be ranking
she can't be ranking
we can't be ranking
you can't be ranking
they can't be ranking	I can't have ranked
you can't have ranked
she can't have ranked
we can't have ranked
you can't have ranked
they can't have ranked	I can't have been ranking
you can't have been ranking
she can't have been ranking
we can't have been ranking
you can't have been ranking
they can't have been ranking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I rank?
can you rank?
can she rank?
can we rank?
can you rank?
can they rank? 	can I be ranking?
can you be ranking?
can she be ranking?
can we be ranking?
can you be ranking?
can they be ranking? 	can I have ranked?
can you have ranked?
can she have ranked?
can we have ranked?
can you have ranked?
can they have ranked? 	can I have been ranking?
can you have been ranking?
can she have been ranking?
can we have been ranking?
can you have been ranking?
can they have been ranking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I rank?
can't you rank?
can't she rank?
can't we rank?
can't you rank?
can't they rank? 	can't I be ranking?
can't you be ranking?
can't she be ranking?
can't we be ranking?
can't you be ranking?
can't they be ranking? 	can't I have ranked?
can't you have ranked?
can't she have ranked?
can't we have ranked?
can't you have ranked?
can't they have ranked? 	can't I have been ranking?
can't you have been ranking?
can't she have been ranking?
can't we have been ranking?
can't you have been ranking?
can't they have been ranking?