can spec
Regular verb: spec - speced- speced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can spec
you can spec
he can spec
we can spec
you can spec
they can spec 	I can be specing
you can be specing
he can be specing
we can be specing
you can be specing
they can be specing	I can have speced
you can have speced
he can have speced
we can have speced
you can have speced
they can have speced	I can have been specing
you can have been specing
he can have been specing
we can have been specing
you can have been specing
they can have been specing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot spec
you cannot spec
he cannot spec
we cannot spec
you cannot spec
they cannot spec 	I cannot be specing
you cannot be specing
he cannot be specing
we cannot be specing
you cannot be specing
they cannot be specing	I cannot have speced
you cannot have speced
he cannot have speced
we cannot have speced
you cannot have speced
they cannot have speced	I cannot have been specing
you cannot have been specing
he cannot have been specing
we cannot have been specing
you cannot have been specing
they cannot have been specing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I spec?
can you spec?
can he spec?
can we spec?
can you spec?
can they spec? 	can I be specing?
can you be specing?
can he be specing?
can we be specing?
can you be specing?
can they be specing? 	can I have speced?
can you have speced?
can he have speced?
can we have speced?
can you have speced?
can they have speced? 	can I have been specing?
can you have been specing?
can he have been specing?
can we have been specing?
can you have been specing?
can they have been specing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not spec?
can you not spec?
can he not spec?
can we not spec?
can you not spec?
can they not spec? 	can I not be specing?
can you not be specing?
can he not be specing?
can we not be specing?
can you not be specing?
can they not be specing? 	can I not have speced?
can you not have speced?
can he not have speced?
can we not have speced?
can you not have speced?
can they not have speced? 	can I not have been specing?
can you not have been specing?
can he not have been specing?
can we not have been specing?
can you not have been specing?
can they not have been specing?