can fertilise
Regular verb: fertilise - fertilised- fertilised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can fertilise
you can fertilise
he can fertilise
we can fertilise
you can fertilise
they can fertilise 	I can be fertilising
you can be fertilising
he can be fertilising
we can be fertilising
you can be fertilising
they can be fertilising	I can have fertilised
you can have fertilised
he can have fertilised
we can have fertilised
you can have fertilised
they can have fertilised	I can have been fertilising
you can have been fertilising
he can have been fertilising
we can have been fertilising
you can have been fertilising
they can have been fertilising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't fertilise
you can't fertilise
he can't fertilise
we can't fertilise
you can't fertilise
they can't fertilise 	I can't be fertilising
you can't be fertilising
he can't be fertilising
we can't be fertilising
you can't be fertilising
they can't be fertilising	I can't have fertilised
you can't have fertilised
he can't have fertilised
we can't have fertilised
you can't have fertilised
they can't have fertilised	I can't have been fertilising
you can't have been fertilising
he can't have been fertilising
we can't have been fertilising
you can't have been fertilising
they can't have been fertilising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I fertilise?
can you fertilise?
can he fertilise?
can we fertilise?
can you fertilise?
can they fertilise? 	can I be fertilising?
can you be fertilising?
can he be fertilising?
can we be fertilising?
can you be fertilising?
can they be fertilising? 	can I have fertilised?
can you have fertilised?
can he have fertilised?
can we have fertilised?
can you have fertilised?
can they have fertilised? 	can I have been fertilising?
can you have been fertilising?
can he have been fertilising?
can we have been fertilising?
can you have been fertilising?
can they have been fertilising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I fertilise?
can't you fertilise?
can't he fertilise?
can't we fertilise?
can't you fertilise?
can't they fertilise? 	can't I be fertilising?
can't you be fertilising?
can't he be fertilising?
can't we be fertilising?
can't you be fertilising?
can't they be fertilising? 	can't I have fertilised?
can't you have fertilised?
can't he have fertilised?
can't we have fertilised?
can't you have fertilised?
can't they have fertilised? 	can't I have been fertilising?
can't you have been fertilising?
can't he have been fertilising?
can't we have been fertilising?
can't you have been fertilising?
can't they have been fertilising?