can undulate
Verbo regolare: undulate - undulated- undulated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can undulate
you can undulate
she can undulate
we can undulate
you can undulate
they can undulate 	I can be undulating
you can be undulating
she can be undulating
we can be undulating
you can be undulating
they can be undulating	I can have undulated
you can have undulated
she can have undulated
we can have undulated
you can have undulated
they can have undulated	I can have been undulating
you can have been undulating
she can have been undulating
we can have been undulating
you can have been undulating
they can have been undulating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot undulate
you cannot undulate
she cannot undulate
we cannot undulate
you cannot undulate
they cannot undulate 	I cannot be undulating
you cannot be undulating
she cannot be undulating
we cannot be undulating
you cannot be undulating
they cannot be undulating	I cannot have undulated
you cannot have undulated
she cannot have undulated
we cannot have undulated
you cannot have undulated
they cannot have undulated	I cannot have been undulating
you cannot have been undulating
she cannot have been undulating
we cannot have been undulating
you cannot have been undulating
they cannot have been undulating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I undulate?
can you undulate?
can she undulate?
can we undulate?
can you undulate?
can they undulate? 	can I be undulating?
can you be undulating?
can she be undulating?
can we be undulating?
can you be undulating?
can they be undulating? 	can I have undulated?
can you have undulated?
can she have undulated?
can we have undulated?
can you have undulated?
can they have undulated? 	can I have been undulating?
can you have been undulating?
can she have been undulating?
can we have been undulating?
can you have been undulating?
can they have been undulating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not undulate?
can you not undulate?
can she not undulate?
can we not undulate?
can you not undulate?
can they not undulate? 	can I not be undulating?
can you not be undulating?
can she not be undulating?
can we not be undulating?
can you not be undulating?
can they not be undulating? 	can I not have undulated?
can you not have undulated?
can she not have undulated?
can we not have undulated?
can you not have undulated?
can they not have undulated? 	can I not have been undulating?
can you not have been undulating?
can she not have been undulating?
can we not have been undulating?
can you not have been undulating?
can they not have been undulating?