English verb conjugation
CAN QUAVER

Regular verb: quaver - quavered - quavered

Affirmation

Simple form	V-ing form
I can quaver you can quaver he can quaver we can quaver you can quaver they can quaver	I can be quavering you can be quavering he can be quavering we can be quavering you can be quavering they can be quavering
Perfect	V-ing perfect
I can have quavered you can have quavered he can have quavered we can have quavered you can have quavered they can have quavered	I can have been quavering you can have been quavering he can have been quavering we can have been quavering you can have been quavering they can have been quavering

Negation

Simple form	V-ing form
I cannot quaver you cannot quaver he cannot quaver we cannot quaver you cannot quaver they cannot quaver	I cannot be quavering you cannot be quavering he cannot be quavering we cannot be quavering you cannot be quavering they cannot be quavering
Perfect	V-ing perfect
I cannot have quavered you cannot have quavered he cannot have quavered we cannot have quavered you cannot have quavered they cannot have quavered	I cannot have been quavering you cannot have been quavering he cannot have been quavering we cannot have been quavering you cannot have been quavering they cannot have been quavering

Interrogative form

Simple form	V-ing form
can I quaver? can you quaver? can he quaver? can we quaver? can you quaver? can they quaver?	can I be quavering? can you be quavering? can he be quavering? can we be quavering? can you be quavering? can they be quavering?
Perfect	V-ing perfect
can I have quavered? can you have quavered? can he have quavered? can we have quavered? can you have quavered? can they have quavered?	can I have been quavering? can you have been quavering? can he have been quavering? can we have been quavering? can you have been quavering? can they have been quavering?

Interro-negative form

Simple form	V-ing form
can I not quaver? can you not quaver? can he not quaver? can we not quaver? can you not quaver? can they not quaver?	can I not be quavering? can you not be quavering? can he not be quavering? can we not be quavering? can you not be quavering? can they not be quavering?
Perfect	V-ing perfect
can I not have quavered? can you not have quavered? can he not have quavered? can we not have quavered? can you not have quavered? can they not have quavered?	can I not have been quavering? can you not have been quavering? can he not have been quavering? can we not have been quavering? can you not have been quavering? can they not have been quavering?