English verb conjugation
COULD OUTBOAST

Regular verb: outboast - outboasted - outboasted

Affirmation

Simple form	V-ing form
I could outboast you could outboast he could outboast we could outboast you could outboast they could outboast	I could be outboasting you could be outboasting he could be outboasting we could be outboasting you could be outboasting they could be outboasting
Perfect	V-ing perfect
I could have outboasted you could have outboasted he could have outboasted we could have outboasted you could have outboasted they could have outboasted	I could have been outboasting you could have been outboasting he could have been outboasting we could have been outboasting you could have been outboasting they could have been outboasting

Negation

Simple form	V-ing form
I couldn't outboast you couldn't outboast he couldn't outboast we couldn't outboast you couldn't outboast they couldn't outboast	I couldn't be outboasting you couldn't be outboasting he couldn't be outboasting we couldn't be outboasting you couldn't be outboasting they couldn't be outboasting
Perfect	V-ing perfect
I couldn't have outboasted you couldn't have outboasted he couldn't have outboasted we couldn't have outboasted you couldn't have outboasted they couldn't have outboasted	I couldn't have been outboasting you couldn't have been outboasting he couldn't have been outboasting we couldn't have been outboasting you couldn't have been outboasting they couldn't have been outboasting

Interrogative form

Simple form	V-ing form
could I outboast? could you outboast? could he outboast? could we outboast? could you outboast? could they outboast?	could I be outboasting? could you be outboasting? could he be outboasting? could we be outboasting? could you be outboasting? could they be outboasting?
Perfect	V-ing perfect
could I have outboasted? could you have outboasted? could he have outboasted? could we have outboasted? could you have outboasted? could they have outboasted?	could I have been outboasting? could you have been outboasting? could he have been outboasting? could we have been outboasting? could you have been outboasting? could they have been outboasting?

Interro-negative form

Simple form	V-ing form
couldn't I outboast? couldn't you outboast? couldn't he outboast? couldn't we outboast? couldn't you outboast? couldn't they outboast?	couldn't I be outboasting? couldn't you be outboasting? couldn't he be outboasting? couldn't we be outboasting? couldn't you be outboasting? couldn't they be outboasting?
Perfect	V-ing perfect
couldn't I have outboasted? couldn't you have outboasted? couldn't he have outboasted? couldn't we have outboasted? couldn't you have outboasted? couldn't they have outboasted?	couldn't I have been outboasting? couldn't you have been outboasting? couldn't he have been outboasting? couldn't we have been outboasting? couldn't you have been outboasting? couldn't they have been outboasting?