Regular verb: underestimate - underestimated - underestimated
Simple form | V-ing form |
I could underestimate you could underestimate she could underestimate we could underestimate you could underestimate they could underestimate | I could be underestimating you could be underestimating she could be underestimating we could be underestimating you could be underestimating they could be underestimating |
Perfect | V-ing perfect |
I could have underestimated you could have underestimated she could have underestimated we could have underestimated you could have underestimated they could have underestimated | I could have been underestimating you could have been underestimating she could have been underestimating we could have been underestimating you could have been underestimating they could have been underestimating |
Simple form | V-ing form |
I couldn't underestimate you couldn't underestimate she couldn't underestimate we couldn't underestimate you couldn't underestimate they couldn't underestimate | I couldn't be underestimating you couldn't be underestimating she couldn't be underestimating we couldn't be underestimating you couldn't be underestimating they couldn't be underestimating |
Perfect | V-ing perfect |
I couldn't have underestimated you couldn't have underestimated she couldn't have underestimated we couldn't have underestimated you couldn't have underestimated they couldn't have underestimated | I couldn't have been underestimating you couldn't have been underestimating she couldn't have been underestimating we couldn't have been underestimating you couldn't have been underestimating they couldn't have been underestimating |
Simple form | V-ing form |
could I underestimate? could you underestimate? could she underestimate? could we underestimate? could you underestimate? could they underestimate? | could I be underestimating? could you be underestimating? could she be underestimating? could we be underestimating? could you be underestimating? could they be underestimating? |
Perfect | V-ing perfect |
could I have underestimated? could you have underestimated? could she have underestimated? could we have underestimated? could you have underestimated? could they have underestimated? | could I have been underestimating? could you have been underestimating? could she have been underestimating? could we have been underestimating? could you have been underestimating? could they have been underestimating? |
Simple form | V-ing form |
couldn't I underestimate? couldn't you underestimate? couldn't she underestimate? couldn't we underestimate? couldn't you underestimate? couldn't they underestimate? | couldn't I be underestimating? couldn't you be underestimating? couldn't she be underestimating? couldn't we be underestimating? couldn't you be underestimating? couldn't they be underestimating? |
Perfect | V-ing perfect |
couldn't I have underestimated? couldn't you have underestimated? couldn't she have underestimated? couldn't we have underestimated? couldn't you have underestimated? couldn't they have underestimated? | couldn't I have been underestimating? couldn't you have been underestimating? couldn't she have been underestimating? couldn't we have been underestimating? couldn't you have been underestimating? couldn't they have been underestimating? |