Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could tackle tackle you could tackle tackle he could tackle tackle we could tackle tackle you could tackle tackle they could tackle tackle
V-ing form
I could be tackle tackling you could be tackle tackling he could be tackle tackling we could be tackle tackling you could be tackle tackling they could be tackle tackling
Perfect
I could have tackle tackled you could have tackle tackled he could have tackle tackled we could have tackle tackled you could have tackle tackled they could have tackle tackled
V-ing perfect
I could have been tackle tackling you could have been tackle tackling he could have been tackle tackling we could have been tackle tackling you could have been tackle tackling they could have been tackle tackling
Negation
Simple form
I could not tackle tackle you could not tackle tackle he could not tackle tackle we could not tackle tackle you could not tackle tackle they could not tackle tackle
V-ing form
I could not be tackle tackling you could not be tackle tackling he could not be tackle tackling we could not be tackle tackling you could not be tackle tackling they could not be tackle tackling
Perfect
I could not have tackle tackled you could not have tackle tackled he could not have tackle tackled we could not have tackle tackled you could not have tackle tackled they could not have tackle tackled
V-ing perfect
I could not have been tackle tackling you could not have been tackle tackling he could not have been tackle tackling we could not have been tackle tackling you could not have been tackle tackling they could not have been tackle tackling
Interrogative form
Simple form
could I tackle tackle? could you tackle tackle? could he tackle tackle? could we tackle tackle? could you tackle tackle? could they tackle tackle?
V-ing form
could I be tackle tackling? could you be tackle tackling? could he be tackle tackling? could we be tackle tackling? could you be tackle tackling? could they be tackle tackling?
Perfect
could I have tackle tackled? could you have tackle tackled? could he have tackle tackled? could we have tackle tackled? could you have tackle tackled? could they have tackle tackled?
V-ing perfect
could I have been tackle tackling? could you have been tackle tackling? could he have been tackle tackling? could we have been tackle tackling? could you have been tackle tackling? could they have been tackle tackling?
Interro-negative form
Simple form
could I not tackle tackle? could you not tackle tackle? could he not tackle tackle? could we not tackle tackle? could you not tackle tackle? could they not tackle tackle?
V-ing form
could I not be tackle tackling? could you not be tackle tackling? could he not be tackle tackling? could we not be tackle tackling? could you not be tackle tackling? could they not be tackle tackling?
Perfect
could I not have tackle tackled? could you not have tackle tackled? could he not have tackle tackled? could we not have tackle tackled? could you not have tackle tackled? could they not have tackle tackled?
V-ing perfect
could I not have been tackle tackling? could you not have been tackle tackling? could he not have been tackle tackling? could we not have been tackle tackling? could you not have been tackle tackling? could they not have been tackle tackling?