English verb conjugation
COULD SYSTEMATISE

Regular verb: systematise - systematised - systematised

Affirmation

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

Negation

Simple form	V-ing form
I could not systematise you could not systematise she could not systematise we could not systematise you could not systematise they could not systematise	I could not be systematising you could not be systematising she could not be systematising we could not be systematising you could not be systematising they could not be systematising
Perfect	V-ing perfect
I could not have systematised you could not have systematised she could not have systematised we could not have systematised you could not have systematised they could not have systematised	I could not have been systematising you could not have been systematising she could not have been systematising we could not have been systematising you could not have been systematising they could not have been systematising

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not systematise? could you not systematise? could she not systematise? could we not systematise? could you not systematise? could they not systematise?	could I not be systematising? could you not be systematising? could she not be systematising? could we not be systematising? could you not be systematising? could they not be systematising?
Perfect	V-ing perfect
could I not have systematised? could you not have systematised? could she not have systematised? could we not have systematised? could you not have systematised? could they not have systematised?	could I not have been systematising? could you not have been systematising? could she not have been systematising? could we not have been systematising? could you not have been systematising? could they not have been systematising?