English verb conjugation
COULD LOB

Regular verb: lob - lobed - lobed

Affirmation

Simple form	V-ing form
I could lob you could lob he could lob we could lob you could lob they could lob	I could be lobing you could be lobing he could be lobing we could be lobing you could be lobing they could be lobing
Perfect	V-ing perfect
I could have lobed you could have lobed he could have lobed we could have lobed you could have lobed they could have lobed	I could have been lobing you could have been lobing he could have been lobing we could have been lobing you could have been lobing they could have been lobing

Negation

Simple form	V-ing form
I could not lob you could not lob he could not lob we could not lob you could not lob they could not lob	I could not be lobing you could not be lobing he could not be lobing we could not be lobing you could not be lobing they could not be lobing
Perfect	V-ing perfect
I could not have lobed you could not have lobed he could not have lobed we could not have lobed you could not have lobed they could not have lobed	I could not have been lobing you could not have been lobing he could not have been lobing we could not have been lobing you could not have been lobing they could not have been lobing

Interrogative form

Simple form	V-ing form
could I lob? could you lob? could he lob? could we lob? could you lob? could they lob?	could I be lobing? could you be lobing? could he be lobing? could we be lobing? could you be lobing? could they be lobing?
Perfect	V-ing perfect
could I have lobed? could you have lobed? could he have lobed? could we have lobed? could you have lobed? could they have lobed?	could I have been lobing? could you have been lobing? could he have been lobing? could we have been lobing? could you have been lobing? could they have been lobing?

Interro-negative form

Simple form	V-ing form
could I not lob? could you not lob? could he not lob? could we not lob? could you not lob? could they not lob?	could I not be lobing? could you not be lobing? could he not be lobing? could we not be lobing? could you not be lobing? could they not be lobing?
Perfect	V-ing perfect
could I not have lobed? could you not have lobed? could he not have lobed? could we not have lobed? could you not have lobed? could they not have lobed?	could I not have been lobing? could you not have been lobing? could he not have been lobing? could we not have been lobing? could you not have been lobing? could they not have been lobing?