English verb conjugation
MUST SHELTER

Regular verb: shelter - sheltered - sheltered

Affirmation

Simple form	V-ing form
I must shelter you must shelter she must shelter we must shelter you must shelter they must shelter	I must be sheltering you must be sheltering she must be sheltering we must be sheltering you must be sheltering they must be sheltering
Perfect	V-ing perfect
I must have sheltered you must have sheltered she must have sheltered we must have sheltered you must have sheltered they must have sheltered	I must have been sheltering you must have been sheltering she must have been sheltering we must have been sheltering you must have been sheltering they must have been sheltering

Negation

Simple form	V-ing form
I mustn't shelter you mustn't shelter she mustn't shelter we mustn't shelter you mustn't shelter they mustn't shelter	I mustn't be sheltering you mustn't be sheltering she mustn't be sheltering we mustn't be sheltering you mustn't be sheltering they mustn't be sheltering
Perfect	V-ing perfect
I mustn't have sheltered you mustn't have sheltered she mustn't have sheltered we mustn't have sheltered you mustn't have sheltered they mustn't have sheltered	I mustn't have been sheltering you mustn't have been sheltering she mustn't have been sheltering we mustn't have been sheltering you mustn't have been sheltering they mustn't have been sheltering

Interrogative form

Simple form	V-ing form
must I shelter? must you shelter? must she shelter? must we shelter? must you shelter? must they shelter?	must I be sheltering? must you be sheltering? must she be sheltering? must we be sheltering? must you be sheltering? must they be sheltering?
Perfect	V-ing perfect
must I have sheltered? must you have sheltered? must she have sheltered? must we have sheltered? must you have sheltered? must they have sheltered?	must I have been sheltering? must you have been sheltering? must she have been sheltering? must we have been sheltering? must you have been sheltering? must they have been sheltering?

Interro-negative form

Simple form	V-ing form
mustn't I shelter? mustn't you shelter? mustn't she shelter? mustn't we shelter? mustn't you shelter? mustn't they shelter?	mustn't I be sheltering? mustn't you be sheltering? mustn't she be sheltering? mustn't we be sheltering? mustn't you be sheltering? mustn't they be sheltering?
Perfect	V-ing perfect
mustn't I have sheltered? mustn't you have sheltered? mustn't she have sheltered? mustn't we have sheltered? mustn't you have sheltered? mustn't they have sheltered?	mustn't I have been sheltering? mustn't you have been sheltering? mustn't she have been sheltering? mustn't we have been sheltering? mustn't you have been sheltering? mustn't they have been sheltering?