English verb conjugation
COULD DATELINE

Regular verb: dateline - datelined - datelined

Affirmation

Simple form	V-ing form
I could dateline you could dateline she could dateline we could dateline you could dateline they could dateline	I could be datelining you could be datelining she could be datelining we could be datelining you could be datelining they could be datelining
Perfect	V-ing perfect
I could have datelined you could have datelined she could have datelined we could have datelined you could have datelined they could have datelined	I could have been datelining you could have been datelining she could have been datelining we could have been datelining you could have been datelining they could have been datelining

Negation

Simple form	V-ing form
I couldn't dateline you couldn't dateline she couldn't dateline we couldn't dateline you couldn't dateline they couldn't dateline	I couldn't be datelining you couldn't be datelining she couldn't be datelining we couldn't be datelining you couldn't be datelining they couldn't be datelining
Perfect	V-ing perfect
I couldn't have datelined you couldn't have datelined she couldn't have datelined we couldn't have datelined you couldn't have datelined they couldn't have datelined	I couldn't have been datelining you couldn't have been datelining she couldn't have been datelining we couldn't have been datelining you couldn't have been datelining they couldn't have been datelining

Interrogative form

Simple form	V-ing form
could I dateline? could you dateline? could she dateline? could we dateline? could you dateline? could they dateline?	could I be datelining? could you be datelining? could she be datelining? could we be datelining? could you be datelining? could they be datelining?
Perfect	V-ing perfect
could I have datelined? could you have datelined? could she have datelined? could we have datelined? could you have datelined? could they have datelined?	could I have been datelining? could you have been datelining? could she have been datelining? could we have been datelining? could you have been datelining? could they have been datelining?

Interro-negative form

Simple form	V-ing form
couldn't I dateline? couldn't you dateline? couldn't she dateline? couldn't we dateline? couldn't you dateline? couldn't they dateline?	couldn't I be datelining? couldn't you be datelining? couldn't she be datelining? couldn't we be datelining? couldn't you be datelining? couldn't they be datelining?
Perfect	V-ing perfect
couldn't I have datelined? couldn't you have datelined? couldn't she have datelined? couldn't we have datelined? couldn't you have datelined? couldn't they have datelined?	couldn't I have been datelining? couldn't you have been datelining? couldn't she have been datelining? couldn't we have been datelining? couldn't you have been datelining? couldn't they have been datelining?