English verb conjugation
COULD SCHEDULE

Regular verb: schedule - scheduled - scheduled

Affirmation

Simple form	V-ing form
I could schedule you could schedule she could schedule we could schedule you could schedule they could schedule	I could be scheduling you could be scheduling she could be scheduling we could be scheduling you could be scheduling they could be scheduling
Perfect	V-ing perfect
I could have scheduled you could have scheduled she could have scheduled we could have scheduled you could have scheduled they could have scheduled	I could have been scheduling you could have been scheduling she could have been scheduling we could have been scheduling you could have been scheduling they could have been scheduling

Negation

Simple form	V-ing form
I couldn't schedule you couldn't schedule she couldn't schedule we couldn't schedule you couldn't schedule they couldn't schedule	I couldn't be scheduling you couldn't be scheduling she couldn't be scheduling we couldn't be scheduling you couldn't be scheduling they couldn't be scheduling
Perfect	V-ing perfect
I couldn't have scheduled you couldn't have scheduled she couldn't have scheduled we couldn't have scheduled you couldn't have scheduled they couldn't have scheduled	I couldn't have been scheduling you couldn't have been scheduling she couldn't have been scheduling we couldn't have been scheduling you couldn't have been scheduling they couldn't have been scheduling

Interrogative form

Simple form	V-ing form
could I schedule? could you schedule? could she schedule? could we schedule? could you schedule? could they schedule?	could I be scheduling? could you be scheduling? could she be scheduling? could we be scheduling? could you be scheduling? could they be scheduling?
Perfect	V-ing perfect
could I have scheduled? could you have scheduled? could she have scheduled? could we have scheduled? could you have scheduled? could they have scheduled?	could I have been scheduling? could you have been scheduling? could she have been scheduling? could we have been scheduling? could you have been scheduling? could they have been scheduling?

Interro-negative form

Simple form	V-ing form
couldn't I schedule? couldn't you schedule? couldn't she schedule? couldn't we schedule? couldn't you schedule? couldn't they schedule?	couldn't I be scheduling? couldn't you be scheduling? couldn't she be scheduling? couldn't we be scheduling? couldn't you be scheduling? couldn't they be scheduling?
Perfect	V-ing perfect
couldn't I have scheduled? couldn't you have scheduled? couldn't she have scheduled? couldn't we have scheduled? couldn't you have scheduled? couldn't they have scheduled?	couldn't I have been scheduling? couldn't you have been scheduling? couldn't she have been scheduling? couldn't we have been scheduling? couldn't you have been scheduling? couldn't they have been scheduling?