English verb conjugation
CAN TACKLE

Regular verb: tackle - tackled - tackled

Affirmation

Simple form	V-ing form
I can tackle you can tackle he can tackle we can tackle you can tackle they can tackle	I can be tackling you can be tackling he can be tackling we can be tackling you can be tackling they can be tackling
Perfect	V-ing perfect
I can have tackled you can have tackled he can have tackled we can have tackled you can have tackled they can have tackled	I can have been tackling you can have been tackling he can have been tackling we can have been tackling you can have been tackling they can have been tackling

Negation

Simple form	V-ing form
I can't tackle you can't tackle he can't tackle we can't tackle you can't tackle they can't tackle	I can't be tackling you can't be tackling he can't be tackling we can't be tackling you can't be tackling they can't be tackling
Perfect	V-ing perfect
I can't have tackled you can't have tackled he can't have tackled we can't have tackled you can't have tackled they can't have tackled	I can't have been tackling you can't have been tackling he can't have been tackling we can't have been tackling you can't have been tackling they can't have been tackling

Interrogative form

Simple form	V-ing form
can I tackle? can you tackle? can he tackle? can we tackle? can you tackle? can they tackle?	can I be tackling? can you be tackling? can he be tackling? can we be tackling? can you be tackling? can they be tackling?
Perfect	V-ing perfect
can I have tackled? can you have tackled? can he have tackled? can we have tackled? can you have tackled? can they have tackled?	can I have been tackling? can you have been tackling? can he have been tackling? can we have been tackling? can you have been tackling? can they have been tackling?

Interro-negative form

Simple form	V-ing form
can't I tackle? can't you tackle? can't he tackle? can't we tackle? can't you tackle? can't they tackle?	can't I be tackling? can't you be tackling? can't he be tackling? can't we be tackling? can't you be tackling? can't they be tackling?
Perfect	V-ing perfect
can't I have tackled? can't you have tackled? can't he have tackled? can't we have tackled? can't you have tackled? can't they have tackled?	can't I have been tackling? can't you have been tackling? can't he have been tackling? can't we have been tackling? can't you have been tackling? can't they have been tackling?