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