Regular verb: twinkle - twinkled - twinkled
Simple form | V-ing form |
I could twinkle you could twinkle he could twinkle we could twinkle you could twinkle they could twinkle | I could be twinkling you could be twinkling he could be twinkling we could be twinkling you could be twinkling they could be twinkling |
Perfect | V-ing perfect |
I could have twinkled you could have twinkled he could have twinkled we could have twinkled you could have twinkled they could have twinkled | I could have been twinkling you could have been twinkling he could have been twinkling we could have been twinkling you could have been twinkling they could have been twinkling |
Simple form | V-ing form |
I could not twinkle you could not twinkle he could not twinkle we could not twinkle you could not twinkle they could not twinkle | I could not be twinkling you could not be twinkling he could not be twinkling we could not be twinkling you could not be twinkling they could not be twinkling |
Perfect | V-ing perfect |
I could not have twinkled you could not have twinkled he could not have twinkled we could not have twinkled you could not have twinkled they could not have twinkled | I could not have been twinkling you could not have been twinkling he could not have been twinkling we could not have been twinkling you could not have been twinkling they could not have been twinkling |
Simple form | V-ing form |
could I twinkle? could you twinkle? could he twinkle? could we twinkle? could you twinkle? could they twinkle? | could I be twinkling? could you be twinkling? could he be twinkling? could we be twinkling? could you be twinkling? could they be twinkling? |
Perfect | V-ing perfect |
could I have twinkled? could you have twinkled? could he have twinkled? could we have twinkled? could you have twinkled? could they have twinkled? | could I have been twinkling? could you have been twinkling? could he have been twinkling? could we have been twinkling? could you have been twinkling? could they have been twinkling? |
Simple form | V-ing form |
could I not twinkle? could you not twinkle? could he not twinkle? could we not twinkle? could you not twinkle? could they not twinkle? | could I not be twinkling? could you not be twinkling? could he not be twinkling? could we not be twinkling? could you not be twinkling? could they not be twinkling? |
Perfect | V-ing perfect |
could I not have twinkled? could you not have twinkled? could he not have twinkled? could we not have twinkled? could you not have twinkled? could they not have twinkled? | could I not have been twinkling? could you not have been twinkling? could he not have been twinkling? could we not have been twinkling? could you not have been twinkling? could they not have been twinkling? |