English verb conjugation
CAN CRUD

Regular verb: crud - cruded - cruded

Affirmation

Simple form	V-ing form
I can crud you can crud he can crud we can crud you can crud they can crud	I can be cruding you can be cruding he can be cruding we can be cruding you can be cruding they can be cruding
Perfect	V-ing perfect
I can have cruded you can have cruded he can have cruded we can have cruded you can have cruded they can have cruded	I can have been cruding you can have been cruding he can have been cruding we can have been cruding you can have been cruding they can have been cruding

Negation

Simple form	V-ing form
I cannot crud you cannot crud he cannot crud we cannot crud you cannot crud they cannot crud	I cannot be cruding you cannot be cruding he cannot be cruding we cannot be cruding you cannot be cruding they cannot be cruding
Perfect	V-ing perfect
I cannot have cruded you cannot have cruded he cannot have cruded we cannot have cruded you cannot have cruded they cannot have cruded	I cannot have been cruding you cannot have been cruding he cannot have been cruding we cannot have been cruding you cannot have been cruding they cannot have been cruding

Interrogative form

Simple form	V-ing form
can I crud? can you crud? can he crud? can we crud? can you crud? can they crud?	can I be cruding? can you be cruding? can he be cruding? can we be cruding? can you be cruding? can they be cruding?
Perfect	V-ing perfect
can I have cruded? can you have cruded? can he have cruded? can we have cruded? can you have cruded? can they have cruded?	can I have been cruding? can you have been cruding? can he have been cruding? can we have been cruding? can you have been cruding? can they have been cruding?

Interro-negative form

Simple form	V-ing form
can I not crud? can you not crud? can he not crud? can we not crud? can you not crud? can they not crud?	can I not be cruding? can you not be cruding? can he not be cruding? can we not be cruding? can you not be cruding? can they not be cruding?
Perfect	V-ing perfect
can I not have cruded? can you not have cruded? can he not have cruded? can we not have cruded? can you not have cruded? can they not have cruded?	can I not have been cruding? can you not have been cruding? can he not have been cruding? can we not have been cruding? can you not have been cruding? can they not have been cruding?