I could fecundate you could fecundate she could fecundate we could fecundate you could fecundate they could fecundate
V-ing form
I could be fecundating you could be fecundating she could be fecundating we could be fecundating you could be fecundating they could be fecundating
Perfect
I could have fecundated you could have fecundated she could have fecundated we could have fecundated you could have fecundated they could have fecundated
V-ing perfect
I could have been fecundating you could have been fecundating she could have been fecundating we could have been fecundating you could have been fecundating they could have been fecundating
Negation
Simple form
I could not fecundate you could not fecundate she could not fecundate we could not fecundate you could not fecundate they could not fecundate
V-ing form
I could not be fecundating you could not be fecundating she could not be fecundating we could not be fecundating you could not be fecundating they could not be fecundating
Perfect
I could not have fecundated you could not have fecundated she could not have fecundated we could not have fecundated you could not have fecundated they could not have fecundated
V-ing perfect
I could not have been fecundating you could not have been fecundating she could not have been fecundating we could not have been fecundating you could not have been fecundating they could not have been fecundating
Interrogative form
Simple form
could I fecundate? could you fecundate? could she fecundate? could we fecundate? could you fecundate? could they fecundate?
V-ing form
could I be fecundating? could you be fecundating? could she be fecundating? could we be fecundating? could you be fecundating? could they be fecundating?
Perfect
could I have fecundated? could you have fecundated? could she have fecundated? could we have fecundated? could you have fecundated? could they have fecundated?
V-ing perfect
could I have been fecundating? could you have been fecundating? could she have been fecundating? could we have been fecundating? could you have been fecundating? could they have been fecundating?
Interro-negative form
Simple form
could I not fecundate? could you not fecundate? could she not fecundate? could we not fecundate? could you not fecundate? could they not fecundate?
V-ing form
could I not be fecundating? could you not be fecundating? could she not be fecundating? could we not be fecundating? could you not be fecundating? could they not be fecundating?
Perfect
could I not have fecundated? could you not have fecundated? could she not have fecundated? could we not have fecundated? could you not have fecundated? could they not have fecundated?
V-ing perfect
could I not have been fecundating? could you not have been fecundating? could she not have been fecundating? could we not have been fecundating? could you not have been fecundating? could they not have been fecundating?