English verb conjugation
COULD HARBOUR

Regular verb: harbour - harboured - harboured

Affirmation

Simple form	V-ing form
I could harbour you could harbour she could harbour we could harbour you could harbour they could harbour	I could be harbouring you could be harbouring she could be harbouring we could be harbouring you could be harbouring they could be harbouring
Perfect	V-ing perfect
I could have harboured you could have harboured she could have harboured we could have harboured you could have harboured they could have harboured	I could have been harbouring you could have been harbouring she could have been harbouring we could have been harbouring you could have been harbouring they could have been harbouring

Negation

Simple form	V-ing form
I couldn't harbour you couldn't harbour she couldn't harbour we couldn't harbour you couldn't harbour they couldn't harbour	I couldn't be harbouring you couldn't be harbouring she couldn't be harbouring we couldn't be harbouring you couldn't be harbouring they couldn't be harbouring
Perfect	V-ing perfect
I couldn't have harboured you couldn't have harboured she couldn't have harboured we couldn't have harboured you couldn't have harboured they couldn't have harboured	I couldn't have been harbouring you couldn't have been harbouring she couldn't have been harbouring we couldn't have been harbouring you couldn't have been harbouring they couldn't have been harbouring

Interrogative form

Simple form	V-ing form
could I harbour? could you harbour? could she harbour? could we harbour? could you harbour? could they harbour?	could I be harbouring? could you be harbouring? could she be harbouring? could we be harbouring? could you be harbouring? could they be harbouring?
Perfect	V-ing perfect
could I have harboured? could you have harboured? could she have harboured? could we have harboured? could you have harboured? could they have harboured?	could I have been harbouring? could you have been harbouring? could she have been harbouring? could we have been harbouring? could you have been harbouring? could they have been harbouring?

Interro-negative form

Simple form	V-ing form
couldn't I harbour? couldn't you harbour? couldn't she harbour? couldn't we harbour? couldn't you harbour? couldn't they harbour?	couldn't I be harbouring? couldn't you be harbouring? couldn't she be harbouring? couldn't we be harbouring? couldn't you be harbouring? couldn't they be harbouring?
Perfect	V-ing perfect
couldn't I have harboured? couldn't you have harboured? couldn't she have harboured? couldn't we have harboured? couldn't you have harboured? couldn't they have harboured?	couldn't I have been harbouring? couldn't you have been harbouring? couldn't she have been harbouring? couldn't we have been harbouring? couldn't you have been harbouring? couldn't they have been harbouring?