can ululate
Regular verb: ululate - ululated- ululated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can ululate
you can ululate
she can ululate
we can ululate
you can ululate
they can ululate 	I can be ululating
you can be ululating
she can be ululating
we can be ululating
you can be ululating
they can be ululating	I can have ululated
you can have ululated
she can have ululated
we can have ululated
you can have ululated
they can have ululated	I can have been ululating
you can have been ululating
she can have been ululating
we can have been ululating
you can have been ululating
they can have been ululating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot ululate
you cannot ululate
she cannot ululate
we cannot ululate
you cannot ululate
they cannot ululate 	I cannot be ululating
you cannot be ululating
she cannot be ululating
we cannot be ululating
you cannot be ululating
they cannot be ululating	I cannot have ululated
you cannot have ululated
she cannot have ululated
we cannot have ululated
you cannot have ululated
they cannot have ululated	I cannot have been ululating
you cannot have been ululating
she cannot have been ululating
we cannot have been ululating
you cannot have been ululating
they cannot have been ululating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I ululate?
can you ululate?
can she ululate?
can we ululate?
can you ululate?
can they ululate? 	can I be ululating?
can you be ululating?
can she be ululating?
can we be ululating?
can you be ululating?
can they be ululating? 	can I have ululated?
can you have ululated?
can she have ululated?
can we have ululated?
can you have ululated?
can they have ululated? 	can I have been ululating?
can you have been ululating?
can she have been ululating?
can we have been ululating?
can you have been ululating?
can they have been ululating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not ululate?
can you not ululate?
can she not ululate?
can we not ululate?
can you not ululate?
can they not ululate? 	can I not be ululating?
can you not be ululating?
can she not be ululating?
can we not be ululating?
can you not be ululating?
can they not be ululating? 	can I not have ululated?
can you not have ululated?
can she not have ululated?
can we not have ululated?
can you not have ululated?
can they not have ululated? 	can I not have been ululating?
can you not have been ululating?
can she not have been ululating?
can we not have been ululating?
can you not have been ululating?
can they not have been ululating?