English verb conjugation
COULD INVEIGH

Regular verb: inveigh - inveighed - inveighed

Affirmation

Simple form	V-ing form
I could inveigh you could inveigh he could inveigh we could inveigh you could inveigh they could inveigh	I could be inveighing you could be inveighing he could be inveighing we could be inveighing you could be inveighing they could be inveighing
Perfect	V-ing perfect
I could have inveighed you could have inveighed he could have inveighed we could have inveighed you could have inveighed they could have inveighed	I could have been inveighing you could have been inveighing he could have been inveighing we could have been inveighing you could have been inveighing they could have been inveighing

Negation

Simple form	V-ing form
I couldn't inveigh you couldn't inveigh he couldn't inveigh we couldn't inveigh you couldn't inveigh they couldn't inveigh	I couldn't be inveighing you couldn't be inveighing he couldn't be inveighing we couldn't be inveighing you couldn't be inveighing they couldn't be inveighing
Perfect	V-ing perfect
I couldn't have inveighed you couldn't have inveighed he couldn't have inveighed we couldn't have inveighed you couldn't have inveighed they couldn't have inveighed	I couldn't have been inveighing you couldn't have been inveighing he couldn't have been inveighing we couldn't have been inveighing you couldn't have been inveighing they couldn't have been inveighing

Interrogative form

Simple form	V-ing form
could I inveigh? could you inveigh? could he inveigh? could we inveigh? could you inveigh? could they inveigh?	could I be inveighing? could you be inveighing? could he be inveighing? could we be inveighing? could you be inveighing? could they be inveighing?
Perfect	V-ing perfect
could I have inveighed? could you have inveighed? could he have inveighed? could we have inveighed? could you have inveighed? could they have inveighed?	could I have been inveighing? could you have been inveighing? could he have been inveighing? could we have been inveighing? could you have been inveighing? could they have been inveighing?

Interro-negative form

Simple form	V-ing form
couldn't I inveigh? couldn't you inveigh? couldn't he inveigh? couldn't we inveigh? couldn't you inveigh? couldn't they inveigh?	couldn't I be inveighing? couldn't you be inveighing? couldn't he be inveighing? couldn't we be inveighing? couldn't you be inveighing? couldn't they be inveighing?
Perfect	V-ing perfect
couldn't I have inveighed? couldn't you have inveighed? couldn't he have inveighed? couldn't we have inveighed? couldn't you have inveighed? couldn't they have inveighed?	couldn't I have been inveighing? couldn't you have been inveighing? couldn't he have been inveighing? couldn't we have been inveighing? couldn't you have been inveighing? couldn't they have been inveighing?