English verb conjugation
COULD MASTERMIND

Regular verb: mastermind - masterminded - masterminded

Affirmation

Simple form	V-ing form
I could mastermind you could mastermind she could mastermind we could mastermind you could mastermind they could mastermind	I could be masterminding you could be masterminding she could be masterminding we could be masterminding you could be masterminding they could be masterminding
Perfect	V-ing perfect
I could have masterminded you could have masterminded she could have masterminded we could have masterminded you could have masterminded they could have masterminded	I could have been masterminding you could have been masterminding she could have been masterminding we could have been masterminding you could have been masterminding they could have been masterminding

Negation

Simple form	V-ing form
I couldn't mastermind you couldn't mastermind she couldn't mastermind we couldn't mastermind you couldn't mastermind they couldn't mastermind	I couldn't be masterminding you couldn't be masterminding she couldn't be masterminding we couldn't be masterminding you couldn't be masterminding they couldn't be masterminding
Perfect	V-ing perfect
I couldn't have masterminded you couldn't have masterminded she couldn't have masterminded we couldn't have masterminded you couldn't have masterminded they couldn't have masterminded	I couldn't have been masterminding you couldn't have been masterminding she couldn't have been masterminding we couldn't have been masterminding you couldn't have been masterminding they couldn't have been masterminding

Interrogative form

Simple form	V-ing form
could I mastermind? could you mastermind? could she mastermind? could we mastermind? could you mastermind? could they mastermind?	could I be masterminding? could you be masterminding? could she be masterminding? could we be masterminding? could you be masterminding? could they be masterminding?
Perfect	V-ing perfect
could I have masterminded? could you have masterminded? could she have masterminded? could we have masterminded? could you have masterminded? could they have masterminded?	could I have been masterminding? could you have been masterminding? could she have been masterminding? could we have been masterminding? could you have been masterminding? could they have been masterminding?

Interro-negative form

Simple form	V-ing form
couldn't I mastermind? couldn't you mastermind? couldn't she mastermind? couldn't we mastermind? couldn't you mastermind? couldn't they mastermind?	couldn't I be masterminding? couldn't you be masterminding? couldn't she be masterminding? couldn't we be masterminding? couldn't you be masterminding? couldn't they be masterminding?
Perfect	V-ing perfect
couldn't I have masterminded? couldn't you have masterminded? couldn't she have masterminded? couldn't we have masterminded? couldn't you have masterminded? couldn't they have masterminded?	couldn't I have been masterminding? couldn't you have been masterminding? couldn't she have been masterminding? couldn't we have been masterminding? couldn't you have been masterminding? couldn't they have been masterminding?