English verb conjugation
COULD OUTGAS

Regular verb: outgas - outgased - outgased

Affirmation

Simple form	V-ing form
I could outgas you could outgas he could outgas we could outgas you could outgas they could outgas	I could be outgasing you could be outgasing he could be outgasing we could be outgasing you could be outgasing they could be outgasing
Perfect	V-ing perfect
I could have outgased you could have outgased he could have outgased we could have outgased you could have outgased they could have outgased	I could have been outgasing you could have been outgasing he could have been outgasing we could have been outgasing you could have been outgasing they could have been outgasing

Negation

Simple form	V-ing form
I couldn't outgas you couldn't outgas he couldn't outgas we couldn't outgas you couldn't outgas they couldn't outgas	I couldn't be outgasing you couldn't be outgasing he couldn't be outgasing we couldn't be outgasing you couldn't be outgasing they couldn't be outgasing
Perfect	V-ing perfect
I couldn't have outgased you couldn't have outgased he couldn't have outgased we couldn't have outgased you couldn't have outgased they couldn't have outgased	I couldn't have been outgasing you couldn't have been outgasing he couldn't have been outgasing we couldn't have been outgasing you couldn't have been outgasing they couldn't have been outgasing

Interrogative form

Simple form	V-ing form
could I outgas? could you outgas? could he outgas? could we outgas? could you outgas? could they outgas?	could I be outgasing? could you be outgasing? could he be outgasing? could we be outgasing? could you be outgasing? could they be outgasing?
Perfect	V-ing perfect
could I have outgased? could you have outgased? could he have outgased? could we have outgased? could you have outgased? could they have outgased?	could I have been outgasing? could you have been outgasing? could he have been outgasing? could we have been outgasing? could you have been outgasing? could they have been outgasing?

Interro-negative form

Simple form	V-ing form
couldn't I outgas? couldn't you outgas? couldn't he outgas? couldn't we outgas? couldn't you outgas? couldn't they outgas?	couldn't I be outgasing? couldn't you be outgasing? couldn't he be outgasing? couldn't we be outgasing? couldn't you be outgasing? couldn't they be outgasing?
Perfect	V-ing perfect
couldn't I have outgased? couldn't you have outgased? couldn't he have outgased? couldn't we have outgased? couldn't you have outgased? couldn't they have outgased?	couldn't I have been outgasing? couldn't you have been outgasing? couldn't he have been outgasing? couldn't we have been outgasing? couldn't you have been outgasing? couldn't they have been outgasing?