English verb conjugation
COULD GROUT

Regular verb: grout - grouted - grouted

Affirmation

Simple form	V-ing form
I could grout you could grout he could grout we could grout you could grout they could grout	I could be grouting you could be grouting he could be grouting we could be grouting you could be grouting they could be grouting
Perfect	V-ing perfect
I could have grouted you could have grouted he could have grouted we could have grouted you could have grouted they could have grouted	I could have been grouting you could have been grouting he could have been grouting we could have been grouting you could have been grouting they could have been grouting

Negation

Simple form	V-ing form
I couldn't grout you couldn't grout he couldn't grout we couldn't grout you couldn't grout they couldn't grout	I couldn't be grouting you couldn't be grouting he couldn't be grouting we couldn't be grouting you couldn't be grouting they couldn't be grouting
Perfect	V-ing perfect
I couldn't have grouted you couldn't have grouted he couldn't have grouted we couldn't have grouted you couldn't have grouted they couldn't have grouted	I couldn't have been grouting you couldn't have been grouting he couldn't have been grouting we couldn't have been grouting you couldn't have been grouting they couldn't have been grouting

Interrogative form

Simple form	V-ing form
could I grout? could you grout? could he grout? could we grout? could you grout? could they grout?	could I be grouting? could you be grouting? could he be grouting? could we be grouting? could you be grouting? could they be grouting?
Perfect	V-ing perfect
could I have grouted? could you have grouted? could he have grouted? could we have grouted? could you have grouted? could they have grouted?	could I have been grouting? could you have been grouting? could he have been grouting? could we have been grouting? could you have been grouting? could they have been grouting?

Interro-negative form

Simple form	V-ing form
couldn't I grout? couldn't you grout? couldn't he grout? couldn't we grout? couldn't you grout? couldn't they grout?	couldn't I be grouting? couldn't you be grouting? couldn't he be grouting? couldn't we be grouting? couldn't you be grouting? couldn't they be grouting?
Perfect	V-ing perfect
couldn't I have grouted? couldn't you have grouted? couldn't he have grouted? couldn't we have grouted? couldn't you have grouted? couldn't they have grouted?	couldn't I have been grouting? couldn't you have been grouting? couldn't he have been grouting? couldn't we have been grouting? couldn't you have been grouting? couldn't they have been grouting?