English verb conjugation
CAN PRECODE

Regular verb: precode - precoded - precoded

Affirmation

Simple form	V-ing form
I can precode you can precode she can precode we can precode you can precode they can precode	I can be precoding you can be precoding she can be precoding we can be precoding you can be precoding they can be precoding
Perfect	V-ing perfect
I can have precoded you can have precoded she can have precoded we can have precoded you can have precoded they can have precoded	I can have been precoding you can have been precoding she can have been precoding we can have been precoding you can have been precoding they can have been precoding

Negation

Simple form	V-ing form
I can't precode you can't precode she can't precode we can't precode you can't precode they can't precode	I can't be precoding you can't be precoding she can't be precoding we can't be precoding you can't be precoding they can't be precoding
Perfect	V-ing perfect
I can't have precoded you can't have precoded she can't have precoded we can't have precoded you can't have precoded they can't have precoded	I can't have been precoding you can't have been precoding she can't have been precoding we can't have been precoding you can't have been precoding they can't have been precoding

Interrogative form

Simple form	V-ing form
can I precode? can you precode? can she precode? can we precode? can you precode? can they precode?	can I be precoding? can you be precoding? can she be precoding? can we be precoding? can you be precoding? can they be precoding?
Perfect	V-ing perfect
can I have precoded? can you have precoded? can she have precoded? can we have precoded? can you have precoded? can they have precoded?	can I have been precoding? can you have been precoding? can she have been precoding? can we have been precoding? can you have been precoding? can they have been precoding?

Interro-negative form

Simple form	V-ing form
can't I precode? can't you precode? can't she precode? can't we precode? can't you precode? can't they precode?	can't I be precoding? can't you be precoding? can't she be precoding? can't we be precoding? can't you be precoding? can't they be precoding?
Perfect	V-ing perfect
can't I have precoded? can't you have precoded? can't she have precoded? can't we have precoded? can't you have precoded? can't they have precoded?	can't I have been precoding? can't you have been precoding? can't she have been precoding? can't we have been precoding? can't you have been precoding? can't they have been precoding?