English verb conjugation
COULD SHIPWRECK

Regular verb: shipwreck - shipwrecked - shipwrecked

Affirmation

Simple form	V-ing form
I could shipwreck you could shipwreck he could shipwreck we could shipwreck you could shipwreck they could shipwreck	I could be shipwrecking you could be shipwrecking he could be shipwrecking we could be shipwrecking you could be shipwrecking they could be shipwrecking
Perfect	V-ing perfect
I could have shipwrecked you could have shipwrecked he could have shipwrecked we could have shipwrecked you could have shipwrecked they could have shipwrecked	I could have been shipwrecking you could have been shipwrecking he could have been shipwrecking we could have been shipwrecking you could have been shipwrecking they could have been shipwrecking

Negation

Simple form	V-ing form
I could not shipwreck you could not shipwreck he could not shipwreck we could not shipwreck you could not shipwreck they could not shipwreck	I could not be shipwrecking you could not be shipwrecking he could not be shipwrecking we could not be shipwrecking you could not be shipwrecking they could not be shipwrecking
Perfect	V-ing perfect
I could not have shipwrecked you could not have shipwrecked he could not have shipwrecked we could not have shipwrecked you could not have shipwrecked they could not have shipwrecked	I could not have been shipwrecking you could not have been shipwrecking he could not have been shipwrecking we could not have been shipwrecking you could not have been shipwrecking they could not have been shipwrecking

Interrogative form

Simple form	V-ing form
could I shipwreck? could you shipwreck? could he shipwreck? could we shipwreck? could you shipwreck? could they shipwreck?	could I be shipwrecking? could you be shipwrecking? could he be shipwrecking? could we be shipwrecking? could you be shipwrecking? could they be shipwrecking?
Perfect	V-ing perfect
could I have shipwrecked? could you have shipwrecked? could he have shipwrecked? could we have shipwrecked? could you have shipwrecked? could they have shipwrecked?	could I have been shipwrecking? could you have been shipwrecking? could he have been shipwrecking? could we have been shipwrecking? could you have been shipwrecking? could they have been shipwrecking?

Interro-negative form

Simple form	V-ing form
could I not shipwreck? could you not shipwreck? could he not shipwreck? could we not shipwreck? could you not shipwreck? could they not shipwreck?	could I not be shipwrecking? could you not be shipwrecking? could he not be shipwrecking? could we not be shipwrecking? could you not be shipwrecking? could they not be shipwrecking?
Perfect	V-ing perfect
could I not have shipwrecked? could you not have shipwrecked? could he not have shipwrecked? could we not have shipwrecked? could you not have shipwrecked? could they not have shipwrecked?	could I not have been shipwrecking? could you not have been shipwrecking? could he not have been shipwrecking? could we not have been shipwrecking? could you not have been shipwrecking? could they not have been shipwrecking?