English verb conjugation
COULD PRECEDE

Regular verb: precede - preceded - preceded

Affirmation

Simple form	V-ing form
I could precede you could precede she could precede we could precede you could precede they could precede	I could be preceding you could be preceding she could be preceding we could be preceding you could be preceding they could be preceding
Perfect	V-ing perfect
I could have preceded you could have preceded she could have preceded we could have preceded you could have preceded they could have preceded	I could have been preceding you could have been preceding she could have been preceding we could have been preceding you could have been preceding they could have been preceding

Negation

Simple form	V-ing form
I could not precede you could not precede she could not precede we could not precede you could not precede they could not precede	I could not be preceding you could not be preceding she could not be preceding we could not be preceding you could not be preceding they could not be preceding
Perfect	V-ing perfect
I could not have preceded you could not have preceded she could not have preceded we could not have preceded you could not have preceded they could not have preceded	I could not have been preceding you could not have been preceding she could not have been preceding we could not have been preceding you could not have been preceding they could not have been preceding

Interrogative form

Simple form	V-ing form
could I precede? could you precede? could she precede? could we precede? could you precede? could they precede?	could I be preceding? could you be preceding? could she be preceding? could we be preceding? could you be preceding? could they be preceding?
Perfect	V-ing perfect
could I have preceded? could you have preceded? could she have preceded? could we have preceded? could you have preceded? could they have preceded?	could I have been preceding? could you have been preceding? could she have been preceding? could we have been preceding? could you have been preceding? could they have been preceding?

Interro-negative form

Simple form	V-ing form
could I not precede? could you not precede? could she not precede? could we not precede? could you not precede? could they not precede?	could I not be preceding? could you not be preceding? could she not be preceding? could we not be preceding? could you not be preceding? could they not be preceding?
Perfect	V-ing perfect
could I not have preceded? could you not have preceded? could she not have preceded? could we not have preceded? could you not have preceded? could they not have preceded?	could I not have been preceding? could you not have been preceding? could she not have been preceding? could we not have been preceding? could you not have been preceding? could they not have been preceding?