English verb conjugation
COULD CHUG

Regular verb: chug - chugged - chugged

Affirmation

Simple form	V-ing form
I could chug you could chug she could chug we could chug you could chug they could chug	I could be chugging you could be chugging she could be chugging we could be chugging you could be chugging they could be chugging
Perfect	V-ing perfect
I could have chugged you could have chugged she could have chugged we could have chugged you could have chugged they could have chugged	I could have been chugging you could have been chugging she could have been chugging we could have been chugging you could have been chugging they could have been chugging

Negation

Simple form	V-ing form
I couldn't chug you couldn't chug she couldn't chug we couldn't chug you couldn't chug they couldn't chug	I couldn't be chugging you couldn't be chugging she couldn't be chugging we couldn't be chugging you couldn't be chugging they couldn't be chugging
Perfect	V-ing perfect
I couldn't have chugged you couldn't have chugged she couldn't have chugged we couldn't have chugged you couldn't have chugged they couldn't have chugged	I couldn't have been chugging you couldn't have been chugging she couldn't have been chugging we couldn't have been chugging you couldn't have been chugging they couldn't have been chugging

Interrogative form

Simple form	V-ing form
could I chug? could you chug? could she chug? could we chug? could you chug? could they chug?	could I be chugging? could you be chugging? could she be chugging? could we be chugging? could you be chugging? could they be chugging?
Perfect	V-ing perfect
could I have chugged? could you have chugged? could she have chugged? could we have chugged? could you have chugged? could they have chugged?	could I have been chugging? could you have been chugging? could she have been chugging? could we have been chugging? could you have been chugging? could they have been chugging?

Interro-negative form

Simple form	V-ing form
couldn't I chug? couldn't you chug? couldn't she chug? couldn't we chug? couldn't you chug? couldn't they chug?	couldn't I be chugging? couldn't you be chugging? couldn't she be chugging? couldn't we be chugging? couldn't you be chugging? couldn't they be chugging?
Perfect	V-ing perfect
couldn't I have chugged? couldn't you have chugged? couldn't she have chugged? couldn't we have chugged? couldn't you have chugged? couldn't they have chugged?	couldn't I have been chugging? couldn't you have been chugging? couldn't she have been chugging? couldn't we have been chugging? couldn't you have been chugging? couldn't they have been chugging?