English verb conjugation
COULD MAINSTREAM

Regular verb: mainstream - mainstreamed - mainstreamed

Affirmation

Simple form	V-ing form
I could mainstream you could mainstream he could mainstream we could mainstream you could mainstream they could mainstream	I could be mainstreaming you could be mainstreaming he could be mainstreaming we could be mainstreaming you could be mainstreaming they could be mainstreaming
Perfect	V-ing perfect
I could have mainstreamed you could have mainstreamed he could have mainstreamed we could have mainstreamed you could have mainstreamed they could have mainstreamed	I could have been mainstreaming you could have been mainstreaming he could have been mainstreaming we could have been mainstreaming you could have been mainstreaming they could have been mainstreaming

Negation

Simple form	V-ing form
I couldn't mainstream you couldn't mainstream he couldn't mainstream we couldn't mainstream you couldn't mainstream they couldn't mainstream	I couldn't be mainstreaming you couldn't be mainstreaming he couldn't be mainstreaming we couldn't be mainstreaming you couldn't be mainstreaming they couldn't be mainstreaming
Perfect	V-ing perfect
I couldn't have mainstreamed you couldn't have mainstreamed he couldn't have mainstreamed we couldn't have mainstreamed you couldn't have mainstreamed they couldn't have mainstreamed	I couldn't have been mainstreaming you couldn't have been mainstreaming he couldn't have been mainstreaming we couldn't have been mainstreaming you couldn't have been mainstreaming they couldn't have been mainstreaming

Interrogative form

Simple form	V-ing form
could I mainstream? could you mainstream? could he mainstream? could we mainstream? could you mainstream? could they mainstream?	could I be mainstreaming? could you be mainstreaming? could he be mainstreaming? could we be mainstreaming? could you be mainstreaming? could they be mainstreaming?
Perfect	V-ing perfect
could I have mainstreamed? could you have mainstreamed? could he have mainstreamed? could we have mainstreamed? could you have mainstreamed? could they have mainstreamed?	could I have been mainstreaming? could you have been mainstreaming? could he have been mainstreaming? could we have been mainstreaming? could you have been mainstreaming? could they have been mainstreaming?

Interro-negative form

Simple form	V-ing form
couldn't I mainstream? couldn't you mainstream? couldn't he mainstream? couldn't we mainstream? couldn't you mainstream? couldn't they mainstream?	couldn't I be mainstreaming? couldn't you be mainstreaming? couldn't he be mainstreaming? couldn't we be mainstreaming? couldn't you be mainstreaming? couldn't they be mainstreaming?
Perfect	V-ing perfect
couldn't I have mainstreamed? couldn't you have mainstreamed? couldn't he have mainstreamed? couldn't we have mainstreamed? couldn't you have mainstreamed? couldn't they have mainstreamed?	couldn't I have been mainstreaming? couldn't you have been mainstreaming? couldn't he have been mainstreaming? couldn't we have been mainstreaming? couldn't you have been mainstreaming? couldn't they have been mainstreaming?