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