English verb conjugation
CAN SWITCH

Regular verb: switch - switched - switched

Affirmation

Simple form	V-ing form
I can switch you can switch he can switch we can switch you can switch they can switch	I can be switching you can be switching he can be switching we can be switching you can be switching they can be switching
Perfect	V-ing perfect
I can have switched you can have switched he can have switched we can have switched you can have switched they can have switched	I can have been switching you can have been switching he can have been switching we can have been switching you can have been switching they can have been switching

Negation

Simple form	V-ing form
I can't switch you can't switch he can't switch we can't switch you can't switch they can't switch	I can't be switching you can't be switching he can't be switching we can't be switching you can't be switching they can't be switching
Perfect	V-ing perfect
I can't have switched you can't have switched he can't have switched we can't have switched you can't have switched they can't have switched	I can't have been switching you can't have been switching he can't have been switching we can't have been switching you can't have been switching they can't have been switching

Interrogative form

Simple form	V-ing form
can I switch? can you switch? can he switch? can we switch? can you switch? can they switch?	can I be switching? can you be switching? can he be switching? can we be switching? can you be switching? can they be switching?
Perfect	V-ing perfect
can I have switched? can you have switched? can he have switched? can we have switched? can you have switched? can they have switched?	can I have been switching? can you have been switching? can he have been switching? can we have been switching? can you have been switching? can they have been switching?

Interro-negative form

Simple form	V-ing form
can't I switch? can't you switch? can't he switch? can't we switch? can't you switch? can't they switch?	can't I be switching? can't you be switching? can't he be switching? can't we be switching? can't you be switching? can't they be switching?
Perfect	V-ing perfect
can't I have switched? can't you have switched? can't he have switched? can't we have switched? can't you have switched? can't they have switched?	can't I have been switching? can't you have been switching? can't he have been switching? can't we have been switching? can't you have been switching? can't they have been switching?