can infect
Regular verb: infect - infected- infected

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can infect
you can infect
he can infect
we can infect
you can infect
they can infect 	I can be infecting
you can be infecting
he can be infecting
we can be infecting
you can be infecting
they can be infecting	I can have infected
you can have infected
he can have infected
we can have infected
you can have infected
they can have infected	I can have been infecting
you can have been infecting
he can have been infecting
we can have been infecting
you can have been infecting
they can have been infecting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot infect
you cannot infect
he cannot infect
we cannot infect
you cannot infect
they cannot infect 	I cannot be infecting
you cannot be infecting
he cannot be infecting
we cannot be infecting
you cannot be infecting
they cannot be infecting	I cannot have infected
you cannot have infected
he cannot have infected
we cannot have infected
you cannot have infected
they cannot have infected	I cannot have been infecting
you cannot have been infecting
he cannot have been infecting
we cannot have been infecting
you cannot have been infecting
they cannot have been infecting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I infect?
can you infect?
can he infect?
can we infect?
can you infect?
can they infect? 	can I be infecting?
can you be infecting?
can he be infecting?
can we be infecting?
can you be infecting?
can they be infecting? 	can I have infected?
can you have infected?
can he have infected?
can we have infected?
can you have infected?
can they have infected? 	can I have been infecting?
can you have been infecting?
can he have been infecting?
can we have been infecting?
can you have been infecting?
can they have been infecting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not infect?
can you not infect?
can he not infect?
can we not infect?
can you not infect?
can they not infect? 	can I not be infecting?
can you not be infecting?
can he not be infecting?
can we not be infecting?
can you not be infecting?
can they not be infecting? 	can I not have infected?
can you not have infected?
can he not have infected?
can we not have infected?
can you not have infected?
can they not have infected? 	can I not have been infecting?
can you not have been infecting?
can he not have been infecting?
can we not have been infecting?
can you not have been infecting?
can they not have been infecting?