English verb conjugation
CAN EXTRUDE

Regular verb: extrude - extruded - extruded

Affirmation

Simple form	V-ing form
I can extrude you can extrude he can extrude we can extrude you can extrude they can extrude	I can be extruding you can be extruding he can be extruding we can be extruding you can be extruding they can be extruding
Perfect	V-ing perfect
I can have extruded you can have extruded he can have extruded we can have extruded you can have extruded they can have extruded	I can have been extruding you can have been extruding he can have been extruding we can have been extruding you can have been extruding they can have been extruding

Negation

Simple form	V-ing form
I can't extrude you can't extrude he can't extrude we can't extrude you can't extrude they can't extrude	I can't be extruding you can't be extruding he can't be extruding we can't be extruding you can't be extruding they can't be extruding
Perfect	V-ing perfect
I can't have extruded you can't have extruded he can't have extruded we can't have extruded you can't have extruded they can't have extruded	I can't have been extruding you can't have been extruding he can't have been extruding we can't have been extruding you can't have been extruding they can't have been extruding

Interrogative form

Simple form	V-ing form
can I extrude? can you extrude? can he extrude? can we extrude? can you extrude? can they extrude?	can I be extruding? can you be extruding? can he be extruding? can we be extruding? can you be extruding? can they be extruding?
Perfect	V-ing perfect
can I have extruded? can you have extruded? can he have extruded? can we have extruded? can you have extruded? can they have extruded?	can I have been extruding? can you have been extruding? can he have been extruding? can we have been extruding? can you have been extruding? can they have been extruding?

Interro-negative form

Simple form	V-ing form
can't I extrude? can't you extrude? can't he extrude? can't we extrude? can't you extrude? can't they extrude?	can't I be extruding? can't you be extruding? can't he be extruding? can't we be extruding? can't you be extruding? can't they be extruding?
Perfect	V-ing perfect
can't I have extruded? can't you have extruded? can't he have extruded? can't we have extruded? can't you have extruded? can't they have extruded?	can't I have been extruding? can't you have been extruding? can't he have been extruding? can't we have been extruding? can't you have been extruding? can't they have been extruding?