English verb conjugation
MAY QUIVER

Regular verb: quiver - quivered - quivered

Affirmation

Simple form	V-ing form
I may quiver you may quiver he may quiver we may quiver you may quiver they may quiver	I may be quivering you may be quivering he may be quivering we may be quivering you may be quivering they may be quivering
Perfect	V-ing perfect
I may have quivered you may have quivered he may have quivered we may have quivered you may have quivered they may have quivered	I may have been quivering you may have been quivering he may have been quivering we may have been quivering you may have been quivering they may have been quivering

Negation

Simple form	V-ing form
I may not quiver you may not quiver he may not quiver we may not quiver you may not quiver they may not quiver	I may not be quivering you may not be quivering he may not be quivering we may not be quivering you may not be quivering they may not be quivering
Perfect	V-ing perfect
I may not have quivered you may not have quivered he may not have quivered we may not have quivered you may not have quivered they may not have quivered	I may not have been quivering you may not have been quivering he may not have been quivering we may not have been quivering you may not have been quivering they may not have been quivering

Interrogative form

Simple form	V-ing form
may I quiver? may you quiver? may he quiver? may we quiver? may you quiver? may they quiver?	may I be quivering? may you be quivering? may he be quivering? may we be quivering? may you be quivering? may they be quivering?
Perfect	V-ing perfect
may I have quivered? may you have quivered? may he have quivered? may we have quivered? may you have quivered? may they have quivered?	may I have been quivering? may you have been quivering? may he have been quivering? may we have been quivering? may you have been quivering? may they have been quivering?

Interro-negative form

Simple form	V-ing form
may I not quiver? may you not quiver? may he not quiver? may we not quiver? may you not quiver? may they not quiver?	may I not be quivering? may you not be quivering? may he not be quivering? may we not be quivering? may you not be quivering? may they not be quivering?
Perfect	V-ing perfect
may I not have quivered? may you not have quivered? may he not have quivered? may we not have quivered? may you not have quivered? may they not have quivered?	may I not have been quivering? may you not have been quivering? may he not have been quivering? may we not have been quivering? may you not have been quivering? may they not have been quivering?