can catch
Irregular verb: catch - caught- caught

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can catch
you can catch
he can catch
we can catch
you can catch
they can catch 	I can be catching
you can be catching
he can be catching
we can be catching
you can be catching
they can be catching	I can have caught
you can have caught
he can have caught
we can have caught
you can have caught
they can have caught	I can have been catching
you can have been catching
he can have been catching
we can have been catching
you can have been catching
they can have been catching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot catch
you cannot catch
he cannot catch
we cannot catch
you cannot catch
they cannot catch 	I cannot be catching
you cannot be catching
he cannot be catching
we cannot be catching
you cannot be catching
they cannot be catching	I cannot have caught
you cannot have caught
he cannot have caught
we cannot have caught
you cannot have caught
they cannot have caught	I cannot have been catching
you cannot have been catching
he cannot have been catching
we cannot have been catching
you cannot have been catching
they cannot have been catching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I catch?
can you catch?
can he catch?
can we catch?
can you catch?
can they catch? 	can I be catching?
can you be catching?
can he be catching?
can we be catching?
can you be catching?
can they be catching? 	can I have caught?
can you have caught?
can he have caught?
can we have caught?
can you have caught?
can they have caught? 	can I have been catching?
can you have been catching?
can he have been catching?
can we have been catching?
can you have been catching?
can they have been catching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not catch?
can you not catch?
can he not catch?
can we not catch?
can you not catch?
can they not catch? 	can I not be catching?
can you not be catching?
can he not be catching?
can we not be catching?
can you not be catching?
can they not be catching? 	can I not have caught?
can you not have caught?
can he not have caught?
can we not have caught?
can you not have caught?
can they not have caught? 	can I not have been catching?
can you not have been catching?
can he not have been catching?
can we not have been catching?
can you not have been catching?
can they not have been catching?