English verb conjugation
CAN SYSTEMATISE

Regular verb: systematise - systematised - systematised

Affirmation

Simple form	V-ing form
I can systematise you can systematise he can systematise we can systematise you can systematise they can systematise	I can be systematising you can be systematising he can be systematising we can be systematising you can be systematising they can be systematising
Perfect	V-ing perfect
I can have systematised you can have systematised he can have systematised we can have systematised you can have systematised they can have systematised	I can have been systematising you can have been systematising he can have been systematising we can have been systematising you can have been systematising they can have been systematising

Negation

Simple form	V-ing form
I can't systematise you can't systematise he can't systematise we can't systematise you can't systematise they can't systematise	I can't be systematising you can't be systematising he can't be systematising we can't be systematising you can't be systematising they can't be systematising
Perfect	V-ing perfect
I can't have systematised you can't have systematised he can't have systematised we can't have systematised you can't have systematised they can't have systematised	I can't have been systematising you can't have been systematising he can't have been systematising we can't have been systematising you can't have been systematising they can't have been systematising

Interrogative form

Simple form	V-ing form
can I systematise? can you systematise? can he systematise? can we systematise? can you systematise? can they systematise?	can I be systematising? can you be systematising? can he be systematising? can we be systematising? can you be systematising? can they be systematising?
Perfect	V-ing perfect
can I have systematised? can you have systematised? can he have systematised? can we have systematised? can you have systematised? can they have systematised?	can I have been systematising? can you have been systematising? can he have been systematising? can we have been systematising? can you have been systematising? can they have been systematising?

Interro-negative form

Simple form	V-ing form
can't I systematise? can't you systematise? can't he systematise? can't we systematise? can't you systematise? can't they systematise?	can't I be systematising? can't you be systematising? can't he be systematising? can't we be systematising? can't you be systematising? can't they be systematising?
Perfect	V-ing perfect
can't I have systematised? can't you have systematised? can't he have systematised? can't we have systematised? can't you have systematised? can't they have systematised?	can't I have been systematising? can't you have been systematising? can't he have been systematising? can't we have been systematising? can't you have been systematising? can't they have been systematising?