English verb conjugation
COULD GIBE

Regular verb: gibe - gibed - gibed

Affirmation

Simple form	V-ing form
I could gibe you could gibe he could gibe we could gibe you could gibe they could gibe	I could be gibing you could be gibing he could be gibing we could be gibing you could be gibing they could be gibing
Perfect	V-ing perfect
I could have gibed you could have gibed he could have gibed we could have gibed you could have gibed they could have gibed	I could have been gibing you could have been gibing he could have been gibing we could have been gibing you could have been gibing they could have been gibing

Negation

Simple form	V-ing form
I couldn't gibe you couldn't gibe he couldn't gibe we couldn't gibe you couldn't gibe they couldn't gibe	I couldn't be gibing you couldn't be gibing he couldn't be gibing we couldn't be gibing you couldn't be gibing they couldn't be gibing
Perfect	V-ing perfect
I couldn't have gibed you couldn't have gibed he couldn't have gibed we couldn't have gibed you couldn't have gibed they couldn't have gibed	I couldn't have been gibing you couldn't have been gibing he couldn't have been gibing we couldn't have been gibing you couldn't have been gibing they couldn't have been gibing

Interrogative form

Simple form	V-ing form
could I gibe? could you gibe? could he gibe? could we gibe? could you gibe? could they gibe?	could I be gibing? could you be gibing? could he be gibing? could we be gibing? could you be gibing? could they be gibing?
Perfect	V-ing perfect
could I have gibed? could you have gibed? could he have gibed? could we have gibed? could you have gibed? could they have gibed?	could I have been gibing? could you have been gibing? could he have been gibing? could we have been gibing? could you have been gibing? could they have been gibing?

Interro-negative form

Simple form	V-ing form
couldn't I gibe? couldn't you gibe? couldn't he gibe? couldn't we gibe? couldn't you gibe? couldn't they gibe?	couldn't I be gibing? couldn't you be gibing? couldn't he be gibing? couldn't we be gibing? couldn't you be gibing? couldn't they be gibing?
Perfect	V-ing perfect
couldn't I have gibed? couldn't you have gibed? couldn't he have gibed? couldn't we have gibed? couldn't you have gibed? couldn't they have gibed?	couldn't I have been gibing? couldn't you have been gibing? couldn't he have been gibing? couldn't we have been gibing? couldn't you have been gibing? couldn't they have been gibing?