Regular verb: maintain - maintained - maintained
Simple form | V-ing form |
I could maintain you could maintain she could maintain we could maintain you could maintain they could maintain | I could be maintaining you could be maintaining she could be maintaining we could be maintaining you could be maintaining they could be maintaining |
Perfect | V-ing perfect |
I could have maintained you could have maintained she could have maintained we could have maintained you could have maintained they could have maintained | I could have been maintaining you could have been maintaining she could have been maintaining we could have been maintaining you could have been maintaining they could have been maintaining |
Simple form | V-ing form |
I could not maintain you could not maintain she could not maintain we could not maintain you could not maintain they could not maintain | I could not be maintaining you could not be maintaining she could not be maintaining we could not be maintaining you could not be maintaining they could not be maintaining |
Perfect | V-ing perfect |
I could not have maintained you could not have maintained she could not have maintained we could not have maintained you could not have maintained they could not have maintained | I could not have been maintaining you could not have been maintaining she could not have been maintaining we could not have been maintaining you could not have been maintaining they could not have been maintaining |
Simple form | V-ing form |
could I maintain? could you maintain? could she maintain? could we maintain? could you maintain? could they maintain? | could I be maintaining? could you be maintaining? could she be maintaining? could we be maintaining? could you be maintaining? could they be maintaining? |
Perfect | V-ing perfect |
could I have maintained? could you have maintained? could she have maintained? could we have maintained? could you have maintained? could they have maintained? | could I have been maintaining? could you have been maintaining? could she have been maintaining? could we have been maintaining? could you have been maintaining? could they have been maintaining? |
Simple form | V-ing form |
could I not maintain? could you not maintain? could she not maintain? could we not maintain? could you not maintain? could they not maintain? | could I not be maintaining? could you not be maintaining? could she not be maintaining? could we not be maintaining? could you not be maintaining? could they not be maintaining? |
Perfect | V-ing perfect |
could I not have maintained? could you not have maintained? could she not have maintained? could we not have maintained? could you not have maintained? could they not have maintained? | could I not have been maintaining? could you not have been maintaining? could she not have been maintaining? could we not have been maintaining? could you not have been maintaining? could they not have been maintaining? |