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 can't quaver you can't quaver he can't quaver we can't quaver you can't quaver they can't quaver	I can't be quavering you can't be quavering he can't be quavering we can't be quavering you can't be quavering they can't be quavering
Perfect	V-ing perfect
I can't have quavered you can't have quavered he can't have quavered we can't have quavered you can't have quavered they can't have quavered	I can't have been quavering you can't have been quavering he can't have been quavering we can't have been quavering you can't have been quavering they can't 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't I quaver? can't you quaver? can't he quaver? can't we quaver? can't you quaver? can't they quaver?	can't I be quavering? can't you be quavering? can't he be quavering? can't we be quavering? can't you be quavering? can't they be quavering?
Perfect	V-ing perfect
can't I have quavered? can't you have quavered? can't he have quavered? can't we have quavered? can't you have quavered? can't they have quavered?	can't I have been quavering? can't you have been quavering? can't he have been quavering? can't we have been quavering? can't you have been quavering? can't they have been quavering?