English verb conjugation
CAN ENDEAVOUR

Regular verb: endeavour - endeavoured - endeavoured

Affirmation

Simple form	V-ing form
I can endeavour you can endeavour he can endeavour we can endeavour you can endeavour they can endeavour	I can be endeavouring you can be endeavouring he can be endeavouring we can be endeavouring you can be endeavouring they can be endeavouring
Perfect	V-ing perfect
I can have endeavoured you can have endeavoured he can have endeavoured we can have endeavoured you can have endeavoured they can have endeavoured	I can have been endeavouring you can have been endeavouring he can have been endeavouring we can have been endeavouring you can have been endeavouring they can have been endeavouring

Negation

Simple form	V-ing form
I can't endeavour you can't endeavour he can't endeavour we can't endeavour you can't endeavour they can't endeavour	I can't be endeavouring you can't be endeavouring he can't be endeavouring we can't be endeavouring you can't be endeavouring they can't be endeavouring
Perfect	V-ing perfect
I can't have endeavoured you can't have endeavoured he can't have endeavoured we can't have endeavoured you can't have endeavoured they can't have endeavoured	I can't have been endeavouring you can't have been endeavouring he can't have been endeavouring we can't have been endeavouring you can't have been endeavouring they can't have been endeavouring

Interrogative form

Simple form	V-ing form
can I endeavour? can you endeavour? can he endeavour? can we endeavour? can you endeavour? can they endeavour?	can I be endeavouring? can you be endeavouring? can he be endeavouring? can we be endeavouring? can you be endeavouring? can they be endeavouring?
Perfect	V-ing perfect
can I have endeavoured? can you have endeavoured? can he have endeavoured? can we have endeavoured? can you have endeavoured? can they have endeavoured?	can I have been endeavouring? can you have been endeavouring? can he have been endeavouring? can we have been endeavouring? can you have been endeavouring? can they have been endeavouring?

Interro-negative form

Simple form	V-ing form
can't I endeavour? can't you endeavour? can't he endeavour? can't we endeavour? can't you endeavour? can't they endeavour?	can't I be endeavouring? can't you be endeavouring? can't he be endeavouring? can't we be endeavouring? can't you be endeavouring? can't they be endeavouring?
Perfect	V-ing perfect
can't I have endeavoured? can't you have endeavoured? can't he have endeavoured? can't we have endeavoured? can't you have endeavoured? can't they have endeavoured?	can't I have been endeavouring? can't you have been endeavouring? can't he have been endeavouring? can't we have been endeavouring? can't you have been endeavouring? can't they have been endeavouring?