English verb conjugation
CAN FERTILISE

Regular verb: fertilise - fertilised - fertilised

Affirmation

Simple form	V-ing form
I can fertilise you can fertilise she can fertilise we can fertilise you can fertilise they can fertilise	I can be fertilising you can be fertilising she can be fertilising we can be fertilising you can be fertilising they can be fertilising
Perfect	V-ing perfect
I can have fertilised you can have fertilised she 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 she 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
I cannot fertilise you cannot fertilise she cannot fertilise we cannot fertilise you cannot fertilise they cannot fertilise	I cannot be fertilising you cannot be fertilising she cannot be fertilising we cannot be fertilising you cannot be fertilising they cannot be fertilising
Perfect	V-ing perfect
I cannot have fertilised you cannot have fertilised she cannot have fertilised we cannot have fertilised you cannot have fertilised they cannot have fertilised	I cannot have been fertilising you cannot have been fertilising she cannot have been fertilising we cannot have been fertilising you cannot have been fertilising they cannot have been fertilising

Interrogative form

Simple form	V-ing form
can I fertilise? can you fertilise? can she fertilise? can we fertilise? can you fertilise? can they fertilise?	can I be fertilising? can you be fertilising? can she be fertilising? can we be fertilising? can you be fertilising? can they be fertilising?
Perfect	V-ing perfect
can I have fertilised? can you have fertilised? can she 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 she 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
can I not fertilise? can you not fertilise? can she not fertilise? can we not fertilise? can you not fertilise? can they not fertilise?	can I not be fertilising? can you not be fertilising? can she not be fertilising? can we not be fertilising? can you not be fertilising? can they not be fertilising?
Perfect	V-ing perfect
can I not have fertilised? can you not have fertilised? can she not have fertilised? can we not have fertilised? can you not have fertilised? can they not have fertilised?	can I not have been fertilising? can you not have been fertilising? can she not have been fertilising? can we not have been fertilising? can you not have been fertilising? can they not have been fertilising?