English verb conjugation
COULD BOG

Regular verb: bog - bogged - bogged

Affirmation

Simple form	V-ing form
I could bog you could bog she could bog we could bog you could bog they could bog	I could be bogging you could be bogging she could be bogging we could be bogging you could be bogging they could be bogging
Perfect	V-ing perfect
I could have bogged you could have bogged she could have bogged we could have bogged you could have bogged they could have bogged	I could have been bogging you could have been bogging she could have been bogging we could have been bogging you could have been bogging they could have been bogging

Negation

Simple form	V-ing form
I could not bog you could not bog she could not bog we could not bog you could not bog they could not bog	I could not be bogging you could not be bogging she could not be bogging we could not be bogging you could not be bogging they could not be bogging
Perfect	V-ing perfect
I could not have bogged you could not have bogged she could not have bogged we could not have bogged you could not have bogged they could not have bogged	I could not have been bogging you could not have been bogging she could not have been bogging we could not have been bogging you could not have been bogging they could not have been bogging

Interrogative form

Simple form	V-ing form
could I bog? could you bog? could she bog? could we bog? could you bog? could they bog?	could I be bogging? could you be bogging? could she be bogging? could we be bogging? could you be bogging? could they be bogging?
Perfect	V-ing perfect
could I have bogged? could you have bogged? could she have bogged? could we have bogged? could you have bogged? could they have bogged?	could I have been bogging? could you have been bogging? could she have been bogging? could we have been bogging? could you have been bogging? could they have been bogging?

Interro-negative form

Simple form	V-ing form
could I not bog? could you not bog? could she not bog? could we not bog? could you not bog? could they not bog?	could I not be bogging? could you not be bogging? could she not be bogging? could we not be bogging? could you not be bogging? could they not be bogging?
Perfect	V-ing perfect
could I not have bogged? could you not have bogged? could she not have bogged? could we not have bogged? could you not have bogged? could they not have bogged?	could I not have been bogging? could you not have been bogging? could she not have been bogging? could we not have been bogging? could you not have been bogging? could they not have been bogging?