English verb conjugation
COULD WRECK

Regular verb: wreck - wrecked - wrecked

Affirmation

Simple form	V-ing form
I could wreck you could wreck he could wreck we could wreck you could wreck they could wreck	I could be wrecking you could be wrecking he could be wrecking we could be wrecking you could be wrecking they could be wrecking
Perfect	V-ing perfect
I could have wrecked you could have wrecked he could have wrecked we could have wrecked you could have wrecked they could have wrecked	I could have been wrecking you could have been wrecking he could have been wrecking we could have been wrecking you could have been wrecking they could have been wrecking

Negation

Simple form	V-ing form
I couldn't wreck you couldn't wreck he couldn't wreck we couldn't wreck you couldn't wreck they couldn't wreck	I couldn't be wrecking you couldn't be wrecking he couldn't be wrecking we couldn't be wrecking you couldn't be wrecking they couldn't be wrecking
Perfect	V-ing perfect
I couldn't have wrecked you couldn't have wrecked he couldn't have wrecked we couldn't have wrecked you couldn't have wrecked they couldn't have wrecked	I couldn't have been wrecking you couldn't have been wrecking he couldn't have been wrecking we couldn't have been wrecking you couldn't have been wrecking they couldn't have been wrecking

Interrogative form

Simple form	V-ing form
could I wreck? could you wreck? could he wreck? could we wreck? could you wreck? could they wreck?	could I be wrecking? could you be wrecking? could he be wrecking? could we be wrecking? could you be wrecking? could they be wrecking?
Perfect	V-ing perfect
could I have wrecked? could you have wrecked? could he have wrecked? could we have wrecked? could you have wrecked? could they have wrecked?	could I have been wrecking? could you have been wrecking? could he have been wrecking? could we have been wrecking? could you have been wrecking? could they have been wrecking?

Interro-negative form

Simple form	V-ing form
couldn't I wreck? couldn't you wreck? couldn't he wreck? couldn't we wreck? couldn't you wreck? couldn't they wreck?	couldn't I be wrecking? couldn't you be wrecking? couldn't he be wrecking? couldn't we be wrecking? couldn't you be wrecking? couldn't they be wrecking?
Perfect	V-ing perfect
couldn't I have wrecked? couldn't you have wrecked? couldn't he have wrecked? couldn't we have wrecked? couldn't you have wrecked? couldn't they have wrecked?	couldn't I have been wrecking? couldn't you have been wrecking? couldn't he have been wrecking? couldn't we have been wrecking? couldn't you have been wrecking? couldn't they have been wrecking?