English verb conjugation
COULD SPEC

Regular verb: spec - speced - speced

Affirmation

Simple form	V-ing form
I could spec you could spec she could spec we could spec you could spec they could spec	I could be specing you could be specing she could be specing we could be specing you could be specing they could be specing
Perfect	V-ing perfect
I could have speced you could have speced she could have speced we could have speced you could have speced they could have speced	I could have been specing you could have been specing she could have been specing we could have been specing you could have been specing they could have been specing

Negation

Simple form	V-ing form
I could not spec you could not spec she could not spec we could not spec you could not spec they could not spec	I could not be specing you could not be specing she could not be specing we could not be specing you could not be specing they could not be specing
Perfect	V-ing perfect
I could not have speced you could not have speced she could not have speced we could not have speced you could not have speced they could not have speced	I could not have been specing you could not have been specing she could not have been specing we could not have been specing you could not have been specing they could not have been specing

Interrogative form

Simple form	V-ing form
could I spec? could you spec? could she spec? could we spec? could you spec? could they spec?	could I be specing? could you be specing? could she be specing? could we be specing? could you be specing? could they be specing?
Perfect	V-ing perfect
could I have speced? could you have speced? could she have speced? could we have speced? could you have speced? could they have speced?	could I have been specing? could you have been specing? could she have been specing? could we have been specing? could you have been specing? could they have been specing?

Interro-negative form

Simple form	V-ing form
could I not spec? could you not spec? could she not spec? could we not spec? could you not spec? could they not spec?	could I not be specing? could you not be specing? could she not be specing? could we not be specing? could you not be specing? could they not be specing?
Perfect	V-ing perfect
could I not have speced? could you not have speced? could she not have speced? could we not have speced? could you not have speced? could they not have speced?	could I not have been specing? could you not have been specing? could she not have been specing? could we not have been specing? could you not have been specing? could they not have been specing?