can undulate
Verbe régulier : undulate - undulated- undulated
Traduction française : onduler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can undulate
you can undulate
he can undulate
we can undulate
you can undulate
they can undulate 	I can be undulating
you can be undulating
he can be undulating
we can be undulating
you can be undulating
they can be undulating	I can have undulated
you can have undulated
he 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
he can have been undulating
we can have been undulating
you can have been undulating
they can have been undulating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot undulate
you cannot undulate
he cannot undulate
we cannot undulate
you cannot undulate
they cannot undulate 	I cannot be undulating
you cannot be undulating
he cannot be undulating
we cannot be undulating
you cannot be undulating
they cannot be undulating	I cannot have undulated
you cannot have undulated
he 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
he cannot have been undulating
we cannot have been undulating
you cannot have been undulating
they cannot have been undulating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I undulate?
can you undulate?
can he undulate?
can we undulate?
can you undulate?
can they undulate? 	can I be undulating?
can you be undulating?
can he be undulating?
can we be undulating?
can you be undulating?
can they be undulating? 	can I have undulated?
can you have undulated?
can he 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 he have been undulating?
can we have been undulating?
can you have been undulating?
can they have been undulating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not undulate?
can you not undulate?
can he 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 he 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 he 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 he not have been undulating?
can we not have been undulating?
can you not have been undulating?
can they not have been undulating?