English verb conjugation
COULD PORT

Regular verb: port - ported - ported

Affirmation

Simple form	V-ing form
I could port you could port he could port we could port you could port they could port	I could be porting you could be porting he could be porting we could be porting you could be porting they could be porting
Perfect	V-ing perfect
I could have ported you could have ported he could have ported we could have ported you could have ported they could have ported	I could have been porting you could have been porting he could have been porting we could have been porting you could have been porting they could have been porting

Negation

Simple form	V-ing form
I couldn't port you couldn't port he couldn't port we couldn't port you couldn't port they couldn't port	I couldn't be porting you couldn't be porting he couldn't be porting we couldn't be porting you couldn't be porting they couldn't be porting
Perfect	V-ing perfect
I couldn't have ported you couldn't have ported he couldn't have ported we couldn't have ported you couldn't have ported they couldn't have ported	I couldn't have been porting you couldn't have been porting he couldn't have been porting we couldn't have been porting you couldn't have been porting they couldn't have been porting

Interrogative form

Simple form	V-ing form
could I port? could you port? could he port? could we port? could you port? could they port?	could I be porting? could you be porting? could he be porting? could we be porting? could you be porting? could they be porting?
Perfect	V-ing perfect
could I have ported? could you have ported? could he have ported? could we have ported? could you have ported? could they have ported?	could I have been porting? could you have been porting? could he have been porting? could we have been porting? could you have been porting? could they have been porting?

Interro-negative form

Simple form	V-ing form
couldn't I port? couldn't you port? couldn't he port? couldn't we port? couldn't you port? couldn't they port?	couldn't I be porting? couldn't you be porting? couldn't he be porting? couldn't we be porting? couldn't you be porting? couldn't they be porting?
Perfect	V-ing perfect
couldn't I have ported? couldn't you have ported? couldn't he have ported? couldn't we have ported? couldn't you have ported? couldn't they have ported?	couldn't I have been porting? couldn't you have been porting? couldn't he have been porting? couldn't we have been porting? couldn't you have been porting? couldn't they have been porting?