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