I can wad you can wad he can wad we can wad you can wad they can wad
V-ing form
I can be wadding you can be wadding he can be wadding we can be wadding you can be wadding they can be wadding
Perfect
I can have wadded you can have wadded he can have wadded we can have wadded you can have wadded they can have wadded
V-ing perfect
I can have been wadding you can have been wadding he can have been wadding we can have been wadding you can have been wadding they can have been wadding
Negation
Simple form
I can't wad you can't wad he can't wad we can't wad you can't wad they can't wad
V-ing form
I can't be wadding you can't be wadding he can't be wadding we can't be wadding you can't be wadding they can't be wadding
Perfect
I can't have wadded you can't have wadded he can't have wadded we can't have wadded you can't have wadded they can't have wadded
V-ing perfect
I can't have been wadding you can't have been wadding he can't have been wadding we can't have been wadding you can't have been wadding they can't have been wadding
Interrogative form
Simple form
can I wad? can you wad? can he wad? can we wad? can you wad? can they wad?
V-ing form
can I be wadding? can you be wadding? can he be wadding? can we be wadding? can you be wadding? can they be wadding?
Perfect
can I have wadded? can you have wadded? can he have wadded? can we have wadded? can you have wadded? can they have wadded?
V-ing perfect
can I have been wadding? can you have been wadding? can he have been wadding? can we have been wadding? can you have been wadding? can they have been wadding?
Interro-negative form
Simple form
can't I wad? can't you wad? can't he wad? can't we wad? can't you wad? can't they wad?
V-ing form
can't I be wadding? can't you be wadding? can't he be wadding? can't we be wadding? can't you be wadding? can't they be wadding?
Perfect
can't I have wadded? can't you have wadded? can't he have wadded? can't we have wadded? can't you have wadded? can't they have wadded?
V-ing perfect
can't I have been wadding? can't you have been wadding? can't he have been wadding? can't we have been wadding? can't you have been wadding? can't they have been wadding?