can gratify
Regular verb: gratify - gratified- gratified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can gratify
you can gratify
he can gratify
we can gratify
you can gratify
they can gratify 	I can be gratifying
you can be gratifying
he can be gratifying
we can be gratifying
you can be gratifying
they can be gratifying	I can have gratified
you can have gratified
he can have gratified
we can have gratified
you can have gratified
they can have gratified	I can have been gratifying
you can have been gratifying
he can have been gratifying
we can have been gratifying
you can have been gratifying
they can have been gratifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot gratify
you cannot gratify
he cannot gratify
we cannot gratify
you cannot gratify
they cannot gratify 	I cannot be gratifying
you cannot be gratifying
he cannot be gratifying
we cannot be gratifying
you cannot be gratifying
they cannot be gratifying	I cannot have gratified
you cannot have gratified
he cannot have gratified
we cannot have gratified
you cannot have gratified
they cannot have gratified	I cannot have been gratifying
you cannot have been gratifying
he cannot have been gratifying
we cannot have been gratifying
you cannot have been gratifying
they cannot have been gratifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I gratify?
can you gratify?
can he gratify?
can we gratify?
can you gratify?
can they gratify? 	can I be gratifying?
can you be gratifying?
can he be gratifying?
can we be gratifying?
can you be gratifying?
can they be gratifying? 	can I have gratified?
can you have gratified?
can he have gratified?
can we have gratified?
can you have gratified?
can they have gratified? 	can I have been gratifying?
can you have been gratifying?
can he have been gratifying?
can we have been gratifying?
can you have been gratifying?
can they have been gratifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not gratify?
can you not gratify?
can he not gratify?
can we not gratify?
can you not gratify?
can they not gratify? 	can I not be gratifying?
can you not be gratifying?
can he not be gratifying?
can we not be gratifying?
can you not be gratifying?
can they not be gratifying? 	can I not have gratified?
can you not have gratified?
can he not have gratified?
can we not have gratified?
can you not have gratified?
can they not have gratified? 	can I not have been gratifying?
can you not have been gratifying?
can he not have been gratifying?
can we not have been gratifying?
can you not have been gratifying?
can they not have been gratifying?