English verb conjugation
COULD MIGRATE

Regular verb: migrate - migrated - migrated

Affirmation

Simple form	V-ing form
I could migrate you could migrate she could migrate we could migrate you could migrate they could migrate	I could be migrating you could be migrating she could be migrating we could be migrating you could be migrating they could be migrating
Perfect	V-ing perfect
I could have migrated you could have migrated she could have migrated we could have migrated you could have migrated they could have migrated	I could have been migrating you could have been migrating she could have been migrating we could have been migrating you could have been migrating they could have been migrating

Negation

Simple form	V-ing form
I couldn't migrate you couldn't migrate she couldn't migrate we couldn't migrate you couldn't migrate they couldn't migrate	I couldn't be migrating you couldn't be migrating she couldn't be migrating we couldn't be migrating you couldn't be migrating they couldn't be migrating
Perfect	V-ing perfect
I couldn't have migrated you couldn't have migrated she couldn't have migrated we couldn't have migrated you couldn't have migrated they couldn't have migrated	I couldn't have been migrating you couldn't have been migrating she couldn't have been migrating we couldn't have been migrating you couldn't have been migrating they couldn't have been migrating

Interrogative form

Simple form	V-ing form
could I migrate? could you migrate? could she migrate? could we migrate? could you migrate? could they migrate?	could I be migrating? could you be migrating? could she be migrating? could we be migrating? could you be migrating? could they be migrating?
Perfect	V-ing perfect
could I have migrated? could you have migrated? could she have migrated? could we have migrated? could you have migrated? could they have migrated?	could I have been migrating? could you have been migrating? could she have been migrating? could we have been migrating? could you have been migrating? could they have been migrating?

Interro-negative form

Simple form	V-ing form
couldn't I migrate? couldn't you migrate? couldn't she migrate? couldn't we migrate? couldn't you migrate? couldn't they migrate?	couldn't I be migrating? couldn't you be migrating? couldn't she be migrating? couldn't we be migrating? couldn't you be migrating? couldn't they be migrating?
Perfect	V-ing perfect
couldn't I have migrated? couldn't you have migrated? couldn't she have migrated? couldn't we have migrated? couldn't you have migrated? couldn't they have migrated?	couldn't I have been migrating? couldn't you have been migrating? couldn't she have been migrating? couldn't we have been migrating? couldn't you have been migrating? couldn't they have been migrating?