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