English verb conjugation
CAN SWAB

Regular verb: swab - swabed - swabed

Affirmation

Simple form	V-ing form
I can swab you can swab he can swab we can swab you can swab they can swab	I can be swabing you can be swabing he can be swabing we can be swabing you can be swabing they can be swabing
Perfect	V-ing perfect
I can have swabed you can have swabed he can have swabed we can have swabed you can have swabed they can have swabed	I can have been swabing you can have been swabing he can have been swabing we can have been swabing you can have been swabing they can have been swabing

Negation

Simple form	V-ing form
I can't swab you can't swab he can't swab we can't swab you can't swab they can't swab	I can't be swabing you can't be swabing he can't be swabing we can't be swabing you can't be swabing they can't be swabing
Perfect	V-ing perfect
I can't have swabed you can't have swabed he can't have swabed we can't have swabed you can't have swabed they can't have swabed	I can't have been swabing you can't have been swabing he can't have been swabing we can't have been swabing you can't have been swabing they can't have been swabing

Interrogative form

Simple form	V-ing form
can I swab? can you swab? can he swab? can we swab? can you swab? can they swab?	can I be swabing? can you be swabing? can he be swabing? can we be swabing? can you be swabing? can they be swabing?
Perfect	V-ing perfect
can I have swabed? can you have swabed? can he have swabed? can we have swabed? can you have swabed? can they have swabed?	can I have been swabing? can you have been swabing? can he have been swabing? can we have been swabing? can you have been swabing? can they have been swabing?

Interro-negative form

Simple form	V-ing form
can't I swab? can't you swab? can't he swab? can't we swab? can't you swab? can't they swab?	can't I be swabing? can't you be swabing? can't he be swabing? can't we be swabing? can't you be swabing? can't they be swabing?
Perfect	V-ing perfect
can't I have swabed? can't you have swabed? can't he have swabed? can't we have swabed? can't you have swabed? can't they have swabed?	can't I have been swabing? can't you have been swabing? can't he have been swabing? can't we have been swabing? can't you have been swabing? can't they have been swabing?