Regular verb: sightsee - sightseed - sightseed
Simple form | V-ing form |
I could sightsee you could sightsee he could sightsee we could sightsee you could sightsee they could sightsee | I could be sightseeing you could be sightseeing he could be sightseeing we could be sightseeing you could be sightseeing they could be sightseeing |
Perfect | V-ing perfect |
I could have sightseed you could have sightseed he could have sightseed we could have sightseed you could have sightseed they could have sightseed | I could have been sightseeing you could have been sightseeing he could have been sightseeing we could have been sightseeing you could have been sightseeing they could have been sightseeing |
Simple form | V-ing form |
I couldn't sightsee you couldn't sightsee he couldn't sightsee we couldn't sightsee you couldn't sightsee they couldn't sightsee | I couldn't be sightseeing you couldn't be sightseeing he couldn't be sightseeing we couldn't be sightseeing you couldn't be sightseeing they couldn't be sightseeing |
Perfect | V-ing perfect |
I couldn't have sightseed you couldn't have sightseed he couldn't have sightseed we couldn't have sightseed you couldn't have sightseed they couldn't have sightseed | I couldn't have been sightseeing you couldn't have been sightseeing he couldn't have been sightseeing we couldn't have been sightseeing you couldn't have been sightseeing they couldn't have been sightseeing |
Simple form | V-ing form |
could I sightsee? could you sightsee? could he sightsee? could we sightsee? could you sightsee? could they sightsee? | could I be sightseeing? could you be sightseeing? could he be sightseeing? could we be sightseeing? could you be sightseeing? could they be sightseeing? |
Perfect | V-ing perfect |
could I have sightseed? could you have sightseed? could he have sightseed? could we have sightseed? could you have sightseed? could they have sightseed? | could I have been sightseeing? could you have been sightseeing? could he have been sightseeing? could we have been sightseeing? could you have been sightseeing? could they have been sightseeing? |
Simple form | V-ing form |
couldn't I sightsee? couldn't you sightsee? couldn't he sightsee? couldn't we sightsee? couldn't you sightsee? couldn't they sightsee? | couldn't I be sightseeing? couldn't you be sightseeing? couldn't he be sightseeing? couldn't we be sightseeing? couldn't you be sightseeing? couldn't they be sightseeing? |
Perfect | V-ing perfect |
couldn't I have sightseed? couldn't you have sightseed? couldn't he have sightseed? couldn't we have sightseed? couldn't you have sightseed? couldn't they have sightseed? | couldn't I have been sightseeing? couldn't you have been sightseeing? couldn't he have been sightseeing? couldn't we have been sightseeing? couldn't you have been sightseeing? couldn't they have been sightseeing? |