English verb conjugation
CAN OPTIMISE

Regular verb: optimise - optimised - optimised

Affirmation

Simple form	V-ing form
I can optimise you can optimise he can optimise we can optimise you can optimise they can optimise	I can be optimising you can be optimising he can be optimising we can be optimising you can be optimising they can be optimising
Perfect	V-ing perfect
I can have optimised you can have optimised he can have optimised we can have optimised you can have optimised they can have optimised	I can have been optimising you can have been optimising he can have been optimising we can have been optimising you can have been optimising they can have been optimising

Negation

Simple form	V-ing form
I can't optimise you can't optimise he can't optimise we can't optimise you can't optimise they can't optimise	I can't be optimising you can't be optimising he can't be optimising we can't be optimising you can't be optimising they can't be optimising
Perfect	V-ing perfect
I can't have optimised you can't have optimised he can't have optimised we can't have optimised you can't have optimised they can't have optimised	I can't have been optimising you can't have been optimising he can't have been optimising we can't have been optimising you can't have been optimising they can't have been optimising

Interrogative form

Simple form	V-ing form
can I optimise? can you optimise? can he optimise? can we optimise? can you optimise? can they optimise?	can I be optimising? can you be optimising? can he be optimising? can we be optimising? can you be optimising? can they be optimising?
Perfect	V-ing perfect
can I have optimised? can you have optimised? can he have optimised? can we have optimised? can you have optimised? can they have optimised?	can I have been optimising? can you have been optimising? can he have been optimising? can we have been optimising? can you have been optimising? can they have been optimising?

Interro-negative form

Simple form	V-ing form
can't I optimise? can't you optimise? can't he optimise? can't we optimise? can't you optimise? can't they optimise?	can't I be optimising? can't you be optimising? can't he be optimising? can't we be optimising? can't you be optimising? can't they be optimising?
Perfect	V-ing perfect
can't I have optimised? can't you have optimised? can't he have optimised? can't we have optimised? can't you have optimised? can't they have optimised?	can't I have been optimising? can't you have been optimising? can't he have been optimising? can't we have been optimising? can't you have been optimising? can't they have been optimising?