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