English verb conjugation
COULD IRK

Regular verb: irk - irked - irked

Affirmation

Simple form	V-ing form
I could irk you could irk she could irk we could irk you could irk they could irk	I could be irking you could be irking she could be irking we could be irking you could be irking they could be irking
Perfect	V-ing perfect
I could have irked you could have irked she could have irked we could have irked you could have irked they could have irked	I could have been irking you could have been irking she could have been irking we could have been irking you could have been irking they could have been irking

Negation

Simple form	V-ing form
I couldn't irk you couldn't irk she couldn't irk we couldn't irk you couldn't irk they couldn't irk	I couldn't be irking you couldn't be irking she couldn't be irking we couldn't be irking you couldn't be irking they couldn't be irking
Perfect	V-ing perfect
I couldn't have irked you couldn't have irked she couldn't have irked we couldn't have irked you couldn't have irked they couldn't have irked	I couldn't have been irking you couldn't have been irking she couldn't have been irking we couldn't have been irking you couldn't have been irking they couldn't have been irking

Interrogative form

Simple form	V-ing form
could I irk? could you irk? could she irk? could we irk? could you irk? could they irk?	could I be irking? could you be irking? could she be irking? could we be irking? could you be irking? could they be irking?
Perfect	V-ing perfect
could I have irked? could you have irked? could she have irked? could we have irked? could you have irked? could they have irked?	could I have been irking? could you have been irking? could she have been irking? could we have been irking? could you have been irking? could they have been irking?

Interro-negative form

Simple form	V-ing form
couldn't I irk? couldn't you irk? couldn't she irk? couldn't we irk? couldn't you irk? couldn't they irk?	couldn't I be irking? couldn't you be irking? couldn't she be irking? couldn't we be irking? couldn't you be irking? couldn't they be irking?
Perfect	V-ing perfect
couldn't I have irked? couldn't you have irked? couldn't she have irked? couldn't we have irked? couldn't you have irked? couldn't they have irked?	couldn't I have been irking? couldn't you have been irking? couldn't she have been irking? couldn't we have been irking? couldn't you have been irking? couldn't they have been irking?